Gm fast burn heads flow numbers

TO BE UNITIZED IN ACCORDANCE WITH GM SPECIFICATIONS. TITLE CT400 Circle Track Racing Engine ... Cylinder Heads: The CT400 engine is equipped with Fast Burn 23-degree small-block Chevrolet cylinder heads, Chevrolet part number 19300955. These cylinder heads are equipped with 2.00" intake and 1.55" exhaust valves, 210cc intake ports and 78ccThe stock Vortec iron head will not tolerate more than .440-inch lift. We measured our stock iron heads right out of the box and the retainer-to-seal clearance was only .470-inch. Subtract the standard .050-inch clearance, this leaves only enough room for a .420-inch lift cam. That just won't do. But don't despair.Sep 05, 2006 · 41 Posts. #6 · Sep 9, 2006 (Edited) The ramp is there to promote swirl (rotating flow) inside the cylinder, so that when the plug ignites, the mixture burns quickly. In the mid 80s GM called it a fast burn head, and they typically needed only 24 to 30 degs of ignition advance for optimum torque and power. They feature optimized oil return passages for increased oil flow. These heads are available in three heart shaped combustion chamber sizes, including 65cc, 72cc and 87cc. The 65cc combustion chambers are as-cast while the 72cc and 87cc chambers are fully CNC'd to provide a 9.5:1 compression ratio when used with flat-top pistons.(using Super Flow 600 flow bench at 28 inches of H2O) The heads were equipped with 2.02-inch intake and 1.60-inch exhaust valves-the exceptions include the Brodix Track-1 (2.080-inch intake valves)...Lean mixtures have a slower burn rate than rich ones, and a perfect mix will burn the fastest. Reducing reach-lean spots in the chamber allows for consistent burn rates from power cycle to power cycle, and more precise ignition timing from one cylinder to the next.Jul 15, 2014 · Chevrolet Small Block Head Casting Numbers; Casting # Combustion Chamber Size (CCs) ... reverse flow, 175cc intake ports, 68cc exhaust ports ... Fast burn, aluminum ... Description Info and Technical Notes D-Shaped Exhaust Port is Raised 0.200" and Requires Special Headers Use Fel-Pro Exhaust Gasket #1470 0.530" Maximum Valve Lift Equipped with Screw-In Studs for 3/8" Rockers Use Self Aligning Rockers May We Suggest Chevrolet Performance 19301685 - Gasket Kit, Fast Burn Aluminum Vortec Design64cc fast-burn combustion chambers deliver big power gains vs. 461 castings; ... GM produced many versions of the Chevy camel back heads, however these are visual copies of the very first double hump heads, often referred to as "fuelies" because of their use on Rochester Ram-Jet equipped Corvettes. ... Flow numbers that are posted were measured ...Jul 01, 2001 · The standard size for the 220 head is 2.055-inch intake and 1.600-inch exhaust. World says a 2.080-inch intake valve will work, too, with a 1.625-inch exhaust valve for ported applications. Heck ... Jul 01, 2001 · The standard size for the 220 head is 2.055-inch intake and 1.600-inch exhaust. World says a 2.080-inch intake valve will work, too, with a 1.625-inch exhaust valve for ported applications. Heck ... We would like to thank everyone that has contributed to the data provided on this site. This information has been gathered from several sources and has not been verified.A stock 180cc Vortec Bow-Tie head will flow 234 cfm intake and 151 on the exhaust. With our " Undercover Porting ", the intake flow improves to 252 cfm and the exhaust will reach 184 cfm. Racers love the 180 Vortec Bow-Tie head because it produces such a flat torque curve. Meaning, it will usually produce the same torque at 6,300 as it did ...The CNC-machined Fast Burn heads require no additional porting for optimal performance, so all you need to do is bolt them onto your Small-Block and go! They can be used on any Small-Block engine with at least 4.000-inch bores and the standard-flow coolant system. Not for use on Gen II 1992-96 LT1/LT4 engines with reverse-flow cooling system.Engine Parts Number Lists Pg 36 - 39 Listing of Original Part Numbers List of Rebuild Part Numbers ... Each bolt has the familiar GM logo laser etched on the head as a quick identifier (Note: ... 9.6:1 compression ratio with "Fast Burn" aluminum heads and roller rockers make great power and lots of torque.Free Shipping - Summit Racing™ 64cc Aluminum Cylinder Heads for Small Chevy with qualifying orders of $99. Shop Cylinder Heads at Summit Racing. FINAL DAY! $20 Off $200 / $50 Off $500 / $100 Off $1000 - Use Promo Code: LABORDAY. ... Part Number: SUM-162112. Estimated Ship Date: Today. Overview. Applications. Recommended Parts. Replacement ...More than flow bench numbers, however, the Fast Burn head worked well on both street and competition engines. Fast Burn heads also serve as the focal point of GMPP's Fast Burn 385 crate engine--a ...Chevy Small-Block Cylinder Heads. You can price and order genuine Chevrolet and GM Performance Parts and engine parts from eBay or directly from your local Chevy or GM Performance Parts dealer counter.. 12464298 - "Fast Burn" complete 23' cylinder head, aluminum, "Cast Ported" Technology for "out of the box" performance, comes with 62cc chambers, raised runner port volumes of 210cc/78cc, 2.00 ...Sep 21, 2015 · The smaller 267-cc intake flows 395 cfm at .650-inch lift; meanwhile, the larger 277-cc version exceeds 400 cfm at higher lift numbers. Both require a 4.125-inch-or-larger bore, and the 277-cc is intended for 440-plus-ci. Plenty of clearance for 7/16-inch-diame-ter pushrods is provided. 12480011. SB2.2 head 48 ~ 54 CC angle plug 284 CC intake runner Bare heads. 12480034. 2.02/1.60. Bowtie Phase III 64cc Angle plug 184 cc intake runner. 12506450. 350. Originally sold bare, so valve sizes are dependent on machining. All 400ci small-blocks utilize Siamese cylinder walls. This design caused the cooling system to develop hot spots and that is why the 400 heads have steam holes. 25534351C: 2004 Bow Tie, cast-iron, Vortec, 175cc intake ports, 65cc exhaust ports, 2.02/1.55-inch valves.TO BE UNITIZED IN ACCORDANCE WITH GM SPECIFICATIONS. TITLE CT400 Circle Track Racing Engine ... Cylinder Heads: The CT400 engine is equipped with Fast Burn 23-degree small-block Chevrolet cylinder heads, Chevrolet part number 19300955. These cylinder heads are equipped with 2.00" intake and 1.55" exhaust valves, 210cc intake ports and 78ccLT4 VALVE SPRING KIT. Used on ZZ4, Fast Burn, LT4, and Iron Vortec Bowtie heads. Kit for 5.7L LT4 engines. Includes 16 P/N 10212808 lightweight retainers. Use with spring kit P/N 12495494 and key kit P/N 12495503. 12480011. SB2.2 head 48 ~ 54 CC angle plug 284 CC intake runner Bare heads. 12480034. 2.02/1.60. Bowtie Phase III 64cc Angle plug 184 cc intake runner. 12506450. 350. Peak valve lift is probably going to be no more than about half an inch with a typical street cam, so a set of heads that claims huge airflow numbers at extreme valve lifts would not be your best choice. Too much head can be counter productive in this type of application. A drag engine runs at full throttle for a quarter mile.The following prefixes are for Turbo heads: E3ZE inline intake bolt pattern E5RY new maching and slight casting changes E7SE slight change in alloy and valve seat inserts Another source lists the part numbers as E5ZE-EA and E6ZE-AB are turbo head casting numbers. the current part number for a reman head from ford is E7SZ-6049-AXGet big power on a small budget with BluePrint Muscle Series cylinder heads! These lightweight aluminum heads bolt up to your small block Chevy and feature 195cc intake/75cc exhaust runners, 64cc combustion chambers, and 2.02" intake/1.60" exhaust valves. They're fully assembled with valve springs, retainers, locks, guideplates, studs, and ...A flow bench is used to measure the intake and exhaust airflow of a cylinder head. A typical cast-iron Pontiac D-port measures 190 to 210 cfm of peak intake airflow at 28 inches of pressure. Most aftermarket aluminum castings flow anywhere between 260 and 330 cfm. Specialized castings can flow more than 400 cfm.Chevy Fast Burn heads with Manley 2.125/1.600 1st Level full porting job, not yet all out Flow tested on SF-600 FlowBench Flow tested at 28" on 4.000" Bore Fixture Lift----Intake----Exhaust .200----134.4 .300----190.0 .400----235.5 .450----254.3 .500----270.4 .550----277.9 .600----270.0 .650----275.0 .700----277.5 .750----279.5 .800----279.5 LT4 VALVE SPRING KIT. Used on ZZ4, Fast Burn, LT4, and Iron Vortec Bowtie heads. Kit for 5.7L LT4 engines. Includes 16 P/N 10212808 lightweight retainers. Use with spring kit P/N 12495494 and key kit P/N 12495503. LT4 VALVE SPRING KIT. Used on ZZ4, Fast Burn, LT4, and Iron Vortec Bowtie heads. Kit for 5.7L LT4 engines. Includes 16 P/N 10212808 lightweight retainers. Use with spring kit P/N 12495494 and key kit P/N 12495503. 19300955. CNC-machined aluminum performance cylinder head. Completely assembled with 2.000"/1.550" valves. 210-cc intake port, roof raised .240". 78-cc D-shaped exhaust ports, raised .200" – requires Fel-Pro exhaust gasket P/N 1470 (may require minor trimming) 62-cc combustion chamber, .400" deck (can be milled up to .060") With the decision to purchase Sanderson Headers, you receive: Over 50 Years of Experience! Since 1964, we have been building and installing the best exhaust system components on every imaginable type of car, truck, street rod, custom and kit car. Our headers can be found in magazines, at car shows and events around the world. Quality You Can See! No compromise! We begin by using quality ... vet recommended dog food 2021 Several years ago, Muscle Mustangs and Fast Fords began extensive testing on the available heads for the 5.0 Mustangs. The articles began with the August 2003 issue and continued for quite a few issues. The following bench flow data was taken from these articles. The data was all given at 28" of water. From '82 to '93, the Stanadyne DB2 distributor style injection pump was employed on the 6.2L and 6.5L. This fully mechanical pump was known for its simplicity and reliability. Its major drawback was the lack of fueling potential (6,700-psi peak injection pressure vs. today's 30,000-psi common-rail pumps).America's favorite high-performance cast iron small block cylinder heads offer big power and bigger value. Chevrolet Vortec Cylinder Heads' fast burn combustion chamber and high-velocity ports combine to produce big horsepower. Vortec Heads can be mildly ported for additional performance and milled up to .040'' for increased compression ratio. We would like to thank everyone that has contributed to the data provided on this site. This information has been gathered from several sources and has not been verified.Vortec is a trademarked name for a line of small block engines for General Motors trucks. The name first appeared in a 1984 advertisement for the 1985 model year 4.3 L V6 that used "vortex technology" to create a vortex inside the combustion chamber, creating a better air/fuel atomization. GM introduced its Vortec line of engines in the mid ...The heads provide outstanding low-lift flow numbers (the more air you flow, the more potential power) and Fast Burn performance all in an affordable, cast-iron head. Vortec Bowtie Cylinder Head Technical Notes: • Cast-iron Large Runner Cylinder Head • 66cc combustion chambers • 0.450" deck thickness • Hardened exhaust valve seats LT4 VALVE SPRING KIT. Used on ZZ4, Fast Burn, LT4, and Iron Vortec Bowtie heads. Kit for 5.7L LT4 engines. Includes 16 P/N 10212808 lightweight retainers. Use with spring kit P/N 12495494 and key kit P/N 12495503. The Corvette 235 was rated at 150 hp so you're expectations are reasonable and I can also say with some certainty that the documented modifications made to the stovebolt head back in the days before the flow bench did not always improve flow as expected so don't overdo it. 1952 1300 Canadian 1/2 ton restomod.The 265 cu in (4.3 L) "Turbo-Fire" V8 was the second Chevrolet small-block; the first Chevrolet V8 was produced in 1917. The 265 cu in Turbo Fire engine was designed by Ed Cole's group at Chevrolet to provide a more powerful engine for the 1955 Corvette than the model's original " Blue Flame" in-line six, the 162 hp (121 kW) 2-barrel debut version went from drawings to production in just 15 weeks.Chevy Fast Burn heads with Manley 2.125/1.600 1st Level full porting job, not yet all out Flow tested on SF-600 FlowBench Flow tested at 28" on 4.000" Bore Fixture Lift----Intake----Exhaust .200----134.4 .300----190.0 .400----235.5 .450----254.3 .500----270.4 .550----277.9 .600----270.0 .650----275.0 .700----277.5 .750----279.5 .800----279.5 Bowtie Rectangular-Port Aluminum Cylinder Head Assembly. $1,490.61. Quick View. Bowtie 572/720R Cylinder Head Assembly. $1,625.49. Quick View. Big Block Bowtie Rectangular Aluminum Cylinder Head (bare) $1,088.01. Quick View. The Debut. From 1996 to 2000, GM truck and van 350 engines came equipped with L-31 Vortec cylinder heads. Built of cast iron, these powerhouse heads upped the horsepower of these engines by magnitudes. This is primarily attributed to the high port flow in the .300"-.500" valve lift area, wide bowl, and back-cut intake valve and exhaust.im building a 383 for my S10 which is listed in another post, and i was wondering how the GM fast burn head stacks up against dart pro1 215cc cylinder heads, i like the centerbolt valve cover, and the option of using a vortec intake or standard bolt pattern, those things are not the deciding factor in selecting a cylinder head i know, but the flow numbers look pretty good, and the combustion ...If the fuel pressure drops more than 1 psi under 8-10 seconds of full throttle the pump should be changed and dont put the stock TBI pump back in even if your engine is stock. Put the 1996 Vortec EP381 pump back in. MUCH better pump than the EP386 TBI pump. Now to the too much fuel.May 14, 1999 · CR, 750 Holley, headers and an Edelbrock Performer RPM dual plane intake made 430 hp at 5600 rpm and 431 ft/lbs. of torque at 4000 rpm. Very impressive for an over the counter street motor on 92... nct taeyong net worth Vortec Bowtie cylinder heads come with bigger valves, a thicker deck surface and 66cc combustion chambers. The heads provide outstanding low-lift flow numbers (the more air you flow, the more potential power) and Fast Burn performance all in an affordable, cast-iron head.First up is changing the cam timing. The crate LS3 engine has a mild timing of .551/.524-inch lift, 204/211-degree duration, 117-degree lobe-separation angle (LSA). Fortunately for hotrod enthusiasts, the L92 cylinder heads have enormous flow potential, so why not install a high-performance cam.350 mains, 2-piece rear seal, splayed caps, gtp race block 10051182.................2 or 4...bowtie, 3.75"-4.30" bores, 1 or 2-piece rear seal 10051184.................4...bowtie, 4.00"-4.155" bores, 1 or 2-piece rear seal 10054727...350...86-up...2 or 4...one piece rear seal, some "made in canada" 10066036...350...........2 or 4...target …12480011. SB2.2 head 48 ~ 54 CC angle plug 284 CC intake runner Bare heads. 12480034. 2.02/1.60. Bowtie Phase III 64cc Angle plug 184 cc intake runner. 12506450. 350. Sep 13, 2009 · Jul 26, 2001. 10,496. Columbia, MO, USA. They should have somewhere around 230 cc intake ports and great, altho small exhaust ports. And right, a 100 cc "heart-shaped" fast burn chamber! It's a shame we can't send a set to Mark, (aka, Vortecpro), and let him port them out to see what their full potential may be!! The Corvette 235 was rated at 150 hp so you're expectations are reasonable and I can also say with some certainty that the documented modifications made to the stovebolt head back in the days before the flow bench did not always improve flow as expected so don't overdo it. 1952 1300 Canadian 1/2 ton restomod.Gen. 2 LT1, Reverse flow, 175 intake ports, 68 cc exhaust ports 350 10215339 cc 1997 Gen. 3 "LS1" 350 10225121 cc 1994-95 LT5, ZR1, DOHC 32-valve 350 10225122 cc 1995 LT5, ZR1, DOHC 32-valve 350 10239902 54.4cc 1996-up Gen. 2 LT4, Reverse flow, 195 cc intake, angle plug. 350 10239906 64cc1. 4.3L Vortec ICV and TPS Failure. The idle control valve ("ICV") and throttle position sensors ("TPS") are prone to failure on all 4.3 engines, which can result in poor idling, engine stalling, bad acceleration, and other low-rpm running problems. The idle control valve sits on the throttle body and is responsible for adjusting the ...Bowtie Rectangular-Port Aluminum Cylinder Head Assembly. $1,490.61. Quick View. Bowtie 572/720R Cylinder Head Assembly. $1,625.49. Quick View. Big Block Bowtie Rectangular Aluminum Cylinder Head (bare) $1,088.01. Quick View. Aug 01, 2006 · Trick Flow currently offers three types of cylinder heads: a CNC ported LS1 Chevy head with 215 cc intake ports, a 13.5° valve angle for improved airflow, and relocated spark plug holes. Combustion chambers are 64 cc. The company also has a bolt-on 23° SB Chevy head for 327 to 400 cid motors with 175 cc runners and 55 cc combustion chambers. They can be used on any Small-Block engine with at least 4.000-inch bores and the standard-flow coolant system. Not for use on Gen II 1992-96 LT1/LT4 engines with reverse-flow cooling system. Fast Burn Aluminum Cylinder Head Assembly • CNC-machined aluminum performance cylinder head • Completely assembled with 2.000"/1.550" valves • 210cc intake port, roof raised .240" IMO even though the fast burn heads are made well, the flow numbers are mediocre when compared to all the other aftermarket heads. Same with the Edelbrock ETECs IMO until they recently revised them and improved their flow. AFR 180's would be awesome for your application and would be my 1st choice.Jul 15, 2014 · Chevrolet Small Block Head Casting Numbers; Casting # Combustion Chamber Size (CCs) ... reverse flow, 175cc intake ports, 68cc exhaust ports ... Fast burn, aluminum ... Factory Chevy Heads. Vortec Heads. Vortec Bow-Tie Heads. Bow-Tie Heads. Double Hump Heads. Open Chamber Heads. 602 Crate Motor Heads. 603 Crate Motor Heads. 604 Crate Motor Heads. TRICK FLOW TWISTED WEDGE SBC SMALL BLOCK CHEVY ALUMINUM HEADS PAIR ANGLED PLUGS. Opens in a new window or tab. ... IN STOCK AFR 1006 SBC 195cc Aluminum As Cast Cylinder Head Chevy Angle Plug 64cc. Opens in a new window or tab. Brand New. ... Number of bids and bid amounts may be slightly out of date. See each listing for international shipping ...64cc fast-burn combustion chambers deliver big power gains vs. 461 castings; ... GM produced many versions of the Chevy camel back heads, however these are visual copies of the very first double hump heads, often referred to as "fuelies" because of their use on Rochester Ram-Jet equipped Corvettes. ... Flow numbers that are posted were measured ...The Chevy 250 inline 6 cylinder engine was produced between 1966 and 1985 for the U.S. market. It was a reliable straightforward engine that came to fame mostly due to the fact that was offered alongside the Chevy 230 inline 6 in the all new Chevrolet Camaro. From 1974 to 1985 there was an integrated head produced for the 250 that offered a 1 barrel or 2 barrel carburetor variation.All other Vortec and Vortec-style heads prohibited, including but not limited to Vortec Bow Tie, Edelbrock, EQ, GM Fast Burn, etc. No aluminum heads allowed. No aftermarket heads allowed . No port matching, no pocket porting or blending. No porting or polishing of any kind. No angle plug heads. Stock type stamped steel 1.5 ratio rockers only .The Debut. From 1996 to 2000, GM truck and van 350 engines came equipped with L-31 Vortec cylinder heads. Built of cast iron, these powerhouse heads upped the horsepower of these engines by magnitudes. This is primarily attributed to the high port flow in the .300"-.500" valve lift area, wide bowl, and back-cut intake valve and exhaust.CHEVY CASTING NUMBERS. I know that Chevy Casting Numbers are on several sites on the World Wide Web but I thought it would be a good idea to list them here too. I actually went through several lists and made some corrections before making this list. I hope it helps you identify the Chevrolet engine parts you are working on.Jul 01, 2001 · The standard size for the 220 head is 2.055-inch intake and 1.600-inch exhaust. World says a 2.080-inch intake valve will work, too, with a 1.625-inch exhaust valve for ported applications. Heck ... There are actually three different GM big block water pump nose depths, not just two as common knowledge would have us believe. The factory pump for a tall deck industrial engine (366T/427T or 366 cubic inch tall deck/427 cubic inch tall deck) is approximately 6-3/8" from block to pulley mount surface. Long nose is approximately 7-5/8" from ...Maxx 200 SBC. (Sold in Pairs) The Maxx 200 is the ultimate "as cast" head available that produces CNC type flow number, flowing over 280cfm. This head has produced over 550 hp on pump gas and mild cam .383. Available with multiple spring options; Hyd Flat tap, Hyd Roller, Solid and Solid Roller. Assemblies feature 21-4N Stainless 1 pc Swirl ...The heads provide outstanding low-lift flow numbers (the more air you flow, the more potential power) and Fast Burn performance all in an affordable, cast-iron head. Vortec Bowtie Cylinder Head Technical Notes: • Cast-iron Large Runner Cylinder Head • 66cc combustion chambers • 0.450" deck thickness • Hardened exhaust valve seats Equipped with our short performance Stainless Steel High Flow Risers, these are our best performing systems. They are a direct replacement for many stock Mercruiser manifolds in Bravo and Alpha applic.. Add to Wish List Add to Compare $2,429.95 EMI Thunder Exhaust System-SB Chevy With SS Silent Choice Risers Polished FinishUse the chart below to view flow numbers. Flow Comparisons Between the. INDY EZ-295 vs. Hughes C.N.C's INDY EZ's. This chart is to show the difference in INDY EZ MaxWedge CNC vs. Hughes Max Wedge CNC on the same head. Flow tests below show results from our SAENZ 680 Flow Bench. Intake Port Volumes Exhaust Port Volumes. First up is changing the cam timing. The crate LS3 engine has a mild timing of .551/.524-inch lift, 204/211-degree duration, 117-degree lobe-separation angle (LSA). Fortunately for hotrod enthusiasts, the L92 cylinder heads have enormous flow potential, so why not install a high-performance cam.Jul 01, 2001 · The standard size for the 220 head is 2.055-inch intake and 1.600-inch exhaust. World says a 2.080-inch intake valve will work, too, with a 1.625-inch exhaust valve for ported applications. Heck ... The Vortec head uses 1.94" intake valves and 1.50" exhaust valves to compliment the high velocity port design. The Vortec head out flows the Bow tie head out of the box and is a 20 to 40 horsepower bolt on increase over earlier cast iron small block heads. The new single plane EFI (Electronic Fuel Injection) intake manifold is designed to provide a broad RPM powerband for high-performance street/strip engine applications to a maximum engine speed of 7500 RPM. The manifold is designed to work with 4150 Style Throttle body EFI systems like the Holley 4150 style 112-587 and 112-588. These intake manifolds are designed to accept most stock hardware ...19300955 - Chevrolet Performance Small Block Chevy "Fast Burn" Aluminum Cylinder Head - Complete (1 head) (0) Reviews: Write first review. Condition: New. Price: Qty: Add to Cart See Details "NEW' 604 Valve Springs ... IN STOCK NOW! The "new" spring will supersede the blue beehive spring. New factory part number: 19420455. ...Bowtie Rectangular-Port Aluminum Cylinder Head Assembly. $1,490.61. Quick View. Bowtie 572/720R Cylinder Head Assembly. $1,625.49. Quick View. Big Block Bowtie Rectangular Aluminum Cylinder Head (bare) $1,088.01. Quick View. It's aluminum heads and intake, 345 horsepower, street legal high flow dual catalytic converters, dual snorkel air cleaner, computer and chip combination, make for a complete engine swap kit which should not be overlooked.CHEVY CASTING NUMBERS. I know that Chevy Casting Numbers are on several sites on the World Wide Web but I thought it would be a good idea to list them here too. I actually went through several lists and made some corrections before making this list. I hope it helps you identify the Chevrolet engine parts you are working on. EdelbrockTorque was rated at 275 pound-feet at 3,600 rpm, but 90 percent of peak torque was available between 1,600 and 5,600 rpm. These stats far exceeded every comparable V-6 on the market at the time ...TO BE UNITIZED IN ACCORDANCE WITH GM SPECIFICATIONS. TITLE CT400 Circle Track Racing Engine ... Cylinder Heads: The CT400 engine is equipped with Fast Burn 23-degree small-block Chevrolet cylinder heads, Chevrolet part number 19300955. These cylinder heads are equipped with 2.00" intake and 1.55" exhaust valves, 210cc intake ports and 78ccUse the chart below to view flow numbers. Flow Comparisons Between the. INDY EZ-295 vs. Hughes C.N.C's INDY EZ's. This chart is to show the difference in INDY EZ MaxWedge CNC vs. Hughes Max Wedge CNC on the same head. Flow tests below show results from our SAENZ 680 Flow Bench. Intake Port Volumes Exhaust Port Volumes. Oct 23, 2018 · Re: GM SBC fast burn feedback. by Ks Fats » Wed Oct 24, 2018 2:58 am. Governor, The Brzezinski claim regarding porting is in reference to the head as it is used on the 604 platform; use of that head on other applications will benefit from porting (as Randy said). Even the 604 will benefit from a cleaned up valve job as the factory is sometimes ... Most ported Twin Cam heads with stock diameter valves/seats, used with stock intakes and SE or K&N air filters usually flow their max CFM near 0.350" - 0.450" valve lift. Using a cam that has the intake valve open that far by the time the piston is at max velocity maintains the max intake charge velocity - which makes the best use of the ...They feature optimized oil return passages for increased oil flow. These heads are available in three heart shaped combustion chamber sizes, including 65cc, 72cc and 87cc. The 65cc combustion chambers are as-cast while the 72cc and 87cc chambers are fully CNC'd to provide a 9.5:1 compression ratio when used with flat-top pistons.The 265 cu in (4.3 L) "Turbo-Fire" V8 was the second Chevrolet small-block; the first Chevrolet V8 was produced in 1917. The 265 cu in Turbo Fire engine was designed by Ed Cole's group at Chevrolet to provide a more powerful engine for the 1955 Corvette than the model's original " Blue Flame" in-line six, the 162 hp (121 kW) 2-barrel debut version went from drawings to production in just 15 weeks.From GM Direct: This head ( Fast Burn) is a bolt-on 30 hp increase when used on our ZZ4 crate engine. When tested on a 383 ci small block engine with 9.5 to 1 compression ratio and .540" lift roller cam, single plane intake manifold and 750 cfm Holley carburetor, the Fast Burn heads produced 497 hp at an incredibly low 5800 rpm.The advantage of using a system that incorporates a Mass Air Flow sensor (see Mass Air Flow Sensor), such as the 86 through 89 units, is that the system is self-adjusting (within certain design limits) to different displacement engines, or modified engines with a higher air flow capability, such as would be required when improved cylinder heads ...The Chevy 250 inline 6 cylinder engine was produced between 1966 and 1985 for the U.S. market. It was a reliable straightforward engine that came to fame mostly due to the fact that was offered alongside the Chevy 230 inline 6 in the all new Chevrolet Camaro. From 1974 to 1985 there was an integrated head produced for the 250 that offered a 1 barrel or 2 barrel carburetor variation.24 Degree OEM X275 Class Accepted Valve Angle. 119cc Heart Shaped Combustion Chamber. Up to 2.350 Intake & 1.850 Exhaust Valves. Accepts up to 1.625 O.D. Springs. 290cc, 320cc or 370cc Intake Ports Available. Made in the U.S.A. This is where it all began... a powerful, out-of-the-box cylinder head design matched with an outstanding, unbeatable ...Sep 21, 2015 · The smaller 267-cc intake flows 395 cfm at .650-inch lift; meanwhile, the larger 277-cc version exceeds 400 cfm at higher lift numbers. Both require a 4.125-inch-or-larger bore, and the 277-cc is intended for 440-plus-ci. Plenty of clearance for 7/16-inch-diame-ter pushrods is provided. Jul 01, 2001 · The standard size for the 220 head is 2.055-inch intake and 1.600-inch exhaust. World says a 2.080-inch intake valve will work, too, with a 1.625-inch exhaust valve for ported applications. Heck ... Bowtie Rectangular-Port Aluminum Cylinder Head Assembly. $1,490.61. Quick View. Bowtie 572/720R Cylinder Head Assembly. $1,625.49. Quick View. Big Block Bowtie Rectangular Aluminum Cylinder Head (bare) $1,088.01. Quick View. Vortec Bowtie cylinder heads come with bigger valves, a thicker deck surface and 66cc combustion chambers. The heads provide outstanding low-lift flow numbers (the more air you flow, the more potential power) and Fast Burn performance all in an affordable, cast-iron head.19417592 Cylinder Head (Aluminum Fast Burn), Repaces 19300955. 12464298. 19417592. Fast Burn Aluminum Cylinder Head Assembly. - CNC-machined aluminum performance cylinder head. - Completely assembled with 2.000"/1.550" valves. - 210cc intake port, roof raised .240". - 78cc D-shaped exhaust ports, raised .200" — requires.Chevy cylinder head Identification - Small block casting numbers, Big block cylinder head, camel back heads, double hump heads. Find cast numbers. ... GM Fast burn 62 CC 210 CC intake runner angle plug Vortec. 12480005. 346. 0. 2.125/1.625. Gen III LS1 "GTZ" aluminum 38cc angle plug. 12480011.From GM Direct: This head ( Fast Burn) is a bolt-on 30 hp increase when used on our ZZ4 crate engine. When tested on a 383 ci small block engine with 9.5 to 1 compression ratio and .540" lift roller cam, single plane intake manifold and 750 cfm Holley carburetor, the Fast Burn heads produced 497 hp at an incredibly low 5800 rpm.The heads provide outstanding low-lift flow numbers (the more air you flow, the more potential power) and Fast Burn performance all in an affordable, cast-iron head. Vortec Bowtie Cylinder Head Technical Notes: • Cast-iron Large Runner Cylinder Head • 66cc combustion chambers • 0.450" deck thickness • Hardened exhaust valve seats Bowtie Rectangular-Port Aluminum Cylinder Head Assembly. $1,490.61. Quick View. Bowtie 572/720R Cylinder Head Assembly. $1,625.49. Quick View. Big Block Bowtie Rectangular Aluminum Cylinder Head (bare) $1,088.01. Quick View. Dec 18, 2006 · Both heads were flowed at a 28-inch test depression on a 4.060-inch bore diameter. Wet-Flow Test Comparison 215 Iron Eagle 112.6 lbs/hr fuel flow rate215 Platinum 115.7 lbs/hr fuel flow rate... Sep 11, 2007 · im building a 383 for my S10 which is listed in another post, and i was wondering how the GM fast burn head stacks up against dart pro1 215cc cylinder heads, i like the centerbolt valve cover, and the option of using a vortec intake or standard bolt pattern, those things are not the deciding factor in selecting a cylinder head i know, but the ... pulaski county zoning map The Fast Burn, Vortec Bow-Tie style aluminum heads on the '604 are excellent flowing stock heads. Unlike the heads on the '602 & '603 crate motors, which improve tremendously with " UnderCover Porting ", this head will not benefit from "UnderCover Porting" type modifications.Buy GM Performance Parts small block crate engines from the customs experts at Davis GM Airdrie. Call 403-948-6909. ... Featuring fast burn aluminum cylinder heads, single-plane intake, aluminum roller rocker arms, and 770-cfm carburetor, the ZZ6 Base builds on the last six decades of legendary performance and innovation and advances the Small ...Edelbrock Out of Box and Butler Built Unported Cylinder Heads. Shop Edelbrock Out of Box and Butler Built Unported Cylinder Heads Shop All » D-Port Cylinder Heads (Out-of-the-Box) Edelbrock; Rd-Port Cylinder Heads (Out-of-the-Box) Edelbrock View All » Head Builder Series Kits; Victor Pro Port Cylinder Heads; CNC Cylinder Head Porting ServicesBuilt with an extra-thick ¾-inch deck for nitrous applications, the Airflow Research 1034 heads are rated for up to .600-inch of valve lift and their ideal operating range is around 5,500 RPM. Flow rating at .400-inch lift is 240cc. AFR cylinder heads are available from Jegs and other performance engine parts suppliers and retail for $1,465 pair.Originally sold bare, so valve sizes are dependent on machining. All 400ci small-blocks utilize Siamese cylinder walls. This design caused the cooling system to develop hot spots and that is why the 400 heads have steam holes. 25534351C: 2004 Bow Tie, cast-iron, Vortec, 175cc intake ports, 65cc exhaust ports, 2.02/1.55-inch valves.12480011. SB2.2 head 48 ~ 54 CC angle plug 284 CC intake runner Bare heads. 12480034. 2.02/1.60. Bowtie Phase III 64cc Angle plug 184 cc intake runner. 12506450. 350. Big Block Chevrolet Compatible Heads. BRODIX is the undisputed leader in big block Chevrolet compatible technology. Conventional style cylinder heads are available in 26º, 24º, and 20º valve angles, and spread port heads are available in 18º, 16º, 14.5º, 12º, and 9° versions. View More Information.America's favorite high-performance cast iron small block cylinder heads offer big power and bigger value. Chevrolet Vortec Cylinder Heads' fast burn combustion chamber and high-velocity ports combine to produce big horsepower. Vortec Heads can be mildly ported for additional performance and milled up to .040'' for increased compression ratio.There are actually three different GM big block water pump nose depths, not just two as common knowledge would have us believe. The factory pump for a tall deck industrial engine (366T/427T or 366 cubic inch tall deck/427 cubic inch tall deck) is approximately 6-3/8" from block to pulley mount surface. Long nose is approximately 7-5/8" from ...Vortec is a trademarked name for a line of small block engines for General Motors trucks. The name first appeared in a 1984 advertisement for the 1985 model year 4.3 L V6 that used "vortex technology" to create a vortex inside the combustion chamber, creating a better air/fuel atomization. GM introduced its Vortec line of engines in the mid ...We had the Power Pack heads refreshed by famed racer/mechanic/team owner of the day, namely Tony Ruberti from Vineland, N.J. When all was said and done, it was the fastest 283 Impala in the area.JUST GO FAST™ & CONTACT US; U.S Toll Free: 877.892.8844; U.S & International: 661.257.8124; ... Manufacturer of high performance cylinder heads and manifolds for ford and chevy Categories. AFR Gear; Cylinder Heads. Enforcer As Cast; SBC Eliminator - 23° Cylinder Head ... AIR FLOW RESEARCH (661) 257-8124. Mon-Fri 7am-5pm PT. Hello Guest Sign ...It uses aluminium Fast Burn cylinder heads equipped with LS-style beehive valve springs for greater high-rpm performance. It's rated at 405 horsepower and 406 lb.-ft. of torque - more than any GEN-I Small-Block engine ever offered in a production Chevrolet muscle car or Corvette! ... It also features high-flow cylinder heads that support ...This lost power could be easily regained by using aluminum heads fitted with bore-clearing 1.94/1.50 or 1.55 valves, such as those offered by GM or Air Flow Research. Not only do the heads flow much better than 305 iron castings, but aluminum's superior heat-rejection characteristics allow 10:1 street engines on available unleaded premium pump gas.The advantage of using a system that incorporates a Mass Air Flow sensor (see Mass Air Flow Sensor), such as the 86 through 89 units, is that the system is self-adjusting (within certain design limits) to different displacement engines, or modified engines with a higher air flow capability, such as would be required when improved cylinder heads ...Stock TBI head flows around 175cfm. While .500″ lift numbers don't cover all the aspects to look for such as lower lift flow numbers and exhaust flow numbers its at least something to help you chose a set of heads. If its a GM head you have google the casting number with FLOW behind it and you may find some flow data for that head. 7.Aug 01, 2006 · Trick Flow currently offers three types of cylinder heads: a CNC ported LS1 Chevy head with 215 cc intake ports, a 13.5° valve angle for improved airflow, and relocated spark plug holes. Combustion chambers are 64 cc. The company also has a bolt-on 23° SB Chevy head for 327 to 400 cid motors with 175 cc runners and 55 cc combustion chambers. Chevy Small-Block Cylinder Heads. You can price and order genuine Chevrolet and GM Performance Parts and engine parts from eBay or directly from your local Chevy or GM Performance Parts dealer counter.. 12464298 - "Fast Burn" complete 23' cylinder head, aluminum, "Cast Ported" Technology for "out of the box" performance, comes with 62cc chambers, raised runner port volumes of 210cc/78cc, 2.00 ...In the GM Performance Parts catolog it says "When tested on a 383 ci small block engine with 9.5 to 1 compression ratio and .540" lift roller cam, single plane intake manifold and 750 cfm Holley carburator, the Fast Burn heads produced 497 hp at an incredibly low 5,800 rpm".Even the GM Fast Burn heads can't touch the Vortecs at low lift because their ports are too big which makes their air flow similar but with less swirl. The "bolt-on performance" crowd immediately loved the Vortec's advancements. Gaining 35-40 horses by simply bolting on a new set of heads is definitely a plus.DFW or FLW Files A Package of more than 2925 flow files for use with Dyno simulation programs. I have formatted each cylinder heads information into individual files for use with different versions of DeskTop Dyno, DynoSim, Comp Cams CamQuest program, Dynomation Versions 4 and 5 and Performance Trends Engine Analyzer.Chevrolet Performance’s Fast-Burn 23-degree cylinder heads deliver maximum performance for Small-Block engines. An aluminum head casting – distinguished by Chevy Bowtie logos at each end – and a valvetrain with high-rpm, LS-style beehive-type valve springs stretches the performance range of the heads to enable greater power at a higher rpm. Chevy Fast Burn heads with Manley 2.125/1.600 1st Level full porting job, not yet all out Flow tested on SF-600 FlowBench Flow tested at 28" on 4.000" Bore Fixture Lift----Intake----Exhaust .200----134.4 .300----190. .400----235.5 .450----254.3 .500----270.4 .550----277.9 .600----270. .650----275. .700----277.5 .750----279.5 .800----279.5Unported, with all the other tricks in place, the Vortec's will flow about 235-240 CFM at 0.500" intake and 165-170 cfm at 0.500" exhaust, on a 4" bore at 28" H2O, with clay radiused port opening. With some careful porting there is another 5-10 CFM or so to be had. But again the low lift numbers are unsurpassed at 0.100", 0.200", 0.300", etc. lift.We would like to thank everyone that has contributed to the data provided on this site. This information has been gathered from several sources and has not been verified.matching serial numbers, also will come with the ZZ430 engine. The ZZ430 is based on the small-block, 350-cubic-inch ZZ4, which delivers ... The Fast Burn head uses GM Performance Parts' cast-ported technology. Cast-ported means that as incremental improvements in flow, combustion and cylinder fill were identified during the development process ...A 406 cubic inch small block is one of the most popular choices for Chevy powered sportsman drag racers seeking strong reliable power at reasonable cost. Careful planning and the right mix of parts can push the power close to 700 HP without exotic or costly components. Variations include the option to take the motor to 415ci, 421ci or even 434 cubic inches if so desired...STS T1 245. Head Hunter Series Cylinder Heads/23°. BP HH SB O 229. BP HH SB RO 225. BP HH SB RO 234. 4.500 Bore Spacing Series Cylinder Heads/10°/12°/13°. FF 10 STD. FF 13 STD. WP BD 4510.Big Block Chevrolet Compatible Heads. BRODIX is the undisputed leader in big block Chevrolet compatible technology. Conventional style cylinder heads are available in 26º, 24º, and 20º valve angles, and spread port heads are available in 18º, 16º, 14.5º, 12º, and 9° versions. View More Information.In the GM Performance Parts catolog it says "When tested on a 383 ci small block engine with 9.5 to 1 compression ratio and .540" lift roller cam, single plane intake manifold and 750 cfm Holley carburator, the Fast Burn heads produced 497 hp at an incredibly low 5,800 rpm".Trick Flow currently offers three types of cylinder heads: a CNC ported LS1 Chevy head with 215 cc intake ports, a 13.5° valve angle for improved airflow, and relocated spark plug holes. Combustion chambers are 64 cc. The company also has a bolt-on 23° SB Chevy head for 327 to 400 cid motors with 175 cc runners and 55 cc combustion chambers.We had the Power Pack heads refreshed by famed racer/mechanic/team owner of the day, namely Tony Ruberti from Vineland, N.J. When all was said and done, it was the fastest 283 Impala in the area.matching serial numbers, also will come with the ZZ430 engine. The ZZ430 is based on the small-block, 350-cubic-inch ZZ4, which delivers ... The Fast Burn head uses GM Performance Parts' cast-ported technology. Cast-ported means that as incremental improvements in flow, combustion and cylinder fill were identified during the development process ...America's favorite high-performance cast iron small block cylinder heads offer big power and bigger value. Chevrolet Vortec Cylinder Heads' fast burn combustion chamber and high-velocity ports combine to produce big horsepower. Vortec Heads can be mildly ported for additional performance and milled up to .040'' for increased compression ratio. Free Shipping - Summit Racing™ 64cc Aluminum Cylinder Heads for Small Chevy with qualifying orders of $99. Shop Cylinder Heads at Summit Racing. FINAL DAY! $20 Off $200 / $50 Off $500 / $100 Off $1000 - Use Promo Code: LABORDAY. ... Part Number: SUM-162112. Estimated Ship Date: Today. Overview. Applications. Recommended Parts. Replacement ...Originally sold bare, so valve sizes are dependent on machining. All 400ci small-blocks utilize Siamese cylinder walls. This design caused the cooling system to develop hot spots and that is why the 400 heads have steam holes. 25534351C: 2004 Bow Tie, cast-iron, Vortec, 175cc intake ports, 65cc exhaust ports, 2.02/1.55-inch valves.Gen. 2 LT1, Reverse flow, 175 intake ports, 68 cc exhaust ports 350 10215339 cc 1997 Gen. 3 "LS1" 350 10225121 cc 1994-95 LT5, ZR1, DOHC 32-valve 350 10225122 cc 1995 LT5, ZR1, DOHC 32-valve 350 10239902 54.4cc 1996-up Gen. 2 LT4, Reverse flow, 195 cc intake, angle plug. 350 10239906 64ccSep 13, 2009 · Jul 26, 2001. 10,496. Columbia, MO, USA. They should have somewhere around 230 cc intake ports and great, altho small exhaust ports. And right, a 100 cc "heart-shaped" fast burn chamber! It's a shame we can't send a set to Mark, (aka, Vortecpro), and let him port them out to see what their full potential may be!! We would like to thank everyone that has contributed to the data provided on this site. This information has been gathered from several sources and has not been verified.A stock 180cc Vortec Bow-Tie head will flow 234 cfm intake and 151 on the exhaust. With our " Undercover Porting ", the intake flow improves to 252 cfm and the exhaust will reach 184 cfm. Racers love the 180 Vortec Bow-Tie head because it produces such a flat torque curve. Meaning, it will usually produce the same torque at 6,300 as it did ...Even the GM Fast Burn heads can't touch the Vortecs at low lift because their ports are too big which makes their air flow similar but with less swirl. The "bolt-on performance" crowd immediately loved the Vortec's advancements. Gaining 35-40 horses by simply bolting on a new set of heads is definitely a plus.There are actually three different GM big block water pump nose depths, not just two as common knowledge would have us believe. The factory pump for a tall deck industrial engine (366T/427T or 366 cubic inch tall deck/427 cubic inch tall deck) is approximately 6-3/8" from block to pulley mount surface. Long nose is approximately 7-5/8" from ...Upgrading L59 Cylinder Heads The stock heads can be CNC ported for more airflow and milled up to .030 in. for more compression. Flow numbers can be as high as 325 cfm at .600 lift. Lightweight hollow stem LS3 valves can be cut to 2.000 in. to fit the seats. Between the light valves and better springs, the engines will pull cleanly to 7000 rpm.Crate Engine, ZZ6 350 Turnkey Long Block Crate Engine, 4 Bolt Main, Cast Iron Block Fast Burn Heads, Harmonic Balancer, Chevy, Each Part Number: NAL-19432105 Not Yet Reviewed Cathedral port cylinder heads have been mistakenly dismissed by many in LS-series circles for being "old-tech." However, their thin cross-section allows for a high-velocity and smaller-volume runner design with excellent flow. For a street car, this design means excellent throttle response, torque and average power. Dyno tests have proven that comparable aftermarket cathedral port heads …They can be used on any Small-Block engine with at least 4.000-inch bores and the standard-flow coolant system. Not for use on Gen II 1992-96 LT1/LT4 engines with reverse-flow cooling system. Fast Burn Aluminum Cylinder Head Assembly • CNC-machined aluminum performance cylinder head • Completely assembled with 2.000"/1.550" valves • 210cc intake port, roof raised .240" Edelbrockim building a 383 for my S10 which is listed in another post, and i was wondering how the GM fast burn head stacks up against dart pro1 215cc cylinder heads, i like the centerbolt valve cover, and the option of using a vortec intake or standard bolt pattern, those things are not the deciding factor in selecting a cylinder head i know, but the flow numbers look pretty good, and the combustion ...FITS ALL 1955-Present GM small blocks except LT1, LT4, and LS1-style engines UTILIZES FAST BURN COMBUSTION CHAMBERS and high-velocity intake and exhaust ports PERFORMS GREAT RIGHT OUT OF THE BOX and can be mildly ported and milled up to 0.040 inch REQUIRES A VORTEC-STYLE INTAKE MANIFOLD to complete installationMost small block Chevy's will run best with around 30-34 degrees (initial and centrifugal) with fast-burn heads and 35-36 degrees with conventional heads. If using a camshaft with more duration, you may want to increase the ignition timing lead at the crank and limit the centrifugal advance in the distributor to achieve your total ignition timing.Dec 18, 2006 · Both heads were flowed at a 28-inch test depression on a 4.060-inch bore diameter. Wet-Flow Test Comparison 215 Iron Eagle 112.6 lbs/hr fuel flow rate215 Platinum 115.7 lbs/hr fuel flow rate... Bowtie Rectangular-Port Aluminum Cylinder Head Assembly. $1,490.61. Quick View. Bowtie 572/720R Cylinder Head Assembly. $1,625.49. Quick View. Big Block Bowtie Rectangular Aluminum Cylinder Head (bare) $1,088.01. Quick View. Convert the valvetrain on your aluminum Fast Burn heads to the beehive-type system used on Chevrolet Performance’s latest Fast Burn heads (P/N 19300955) — and used on the SP350, ZZ5, ZZ6, SP383, and ZZ383 crate engines and the CT400 — to gain greater high-rpm capability and valvetrain stability. The QP1000 is a cast iron performance header set for small block Chevrolet engines that are installed in a variety of classic and street rod applications. $700.32 Spark Plug Angle Header Finish Qty: Add to cart Add to compare Description Options Comments Questions Dimensions Applications Installation Notes Warranty Weight 30.0000 lbs SKU QP1000-SECChevrolet Performance's Fast-Burn 23-degree cylinder heads deliver maximum performance for Small-Block engines. An aluminum head casting - distinguished by Chevy Bowtie logos at each end - and a valvetrain with high-rpm, LS-style beehive-type valve springs stretches the performance range of the heads to enable greater power at a higher rpm.Project X SBF 210 (SOLD IN PAIRS) 1,266.00 Learn More Project X SBC 185 (SOLD IN PAIRS) 1,069.00 Learn More Project X SBC 200 (SOLD IN PAIRS) 1,083.00 Learn More Project X SBC 215 (Sold in Pairs) 1,114.00 Learn More Series One We have taken our 100% CNC ported intake and exhaust runners and have made them into an "As-Cast" version. Learn More MAXXCHEVY CASTING NUMBERS. I know that Chevy Casting Numbers are on several sites on the World Wide Web but I thought it would be a good idea to list them here too. I actually went through several lists and made some corrections before making this list. I hope it helps you identify the Chevrolet engine parts you are working on. February 22, 2017. A class action lawsuit filed against General Motors alleges that 2010 through 2013 vehicles with "Generation IV 5.3 Liter V8 Vortec 5300 engines" are defective. The complaint asserts that "the piston rings, PVC system, and Active Fuel Management ('AFM') System used in the Class Vehicle's engines were defective ...Description Info and Technical Notes D-Shaped Exhaust Port is Raised 0.200" and Requires Special Headers Use Fel-Pro Exhaust Gasket #1470 0.530" Maximum Valve Lift Equipped with Screw-In Studs for 3/8" Rockers Use Self Aligning Rockers May We Suggest Chevrolet Performance 19301685 - Gasket Kit, Fast Burn Aluminum Vortec DesignOriginally sold bare, so valve sizes are dependent on machining. All 400ci small-blocks utilize Siamese cylinder walls. This design caused the cooling system to develop hot spots and that is why the 400 heads have steam holes. 25534351C: 2004 Bow Tie, cast-iron, Vortec, 175cc intake ports, 65cc exhaust ports, 2.02/1.55-inch valves.Dec 18, 2006 · Both heads were flowed at a 28-inch test depression on a 4.060-inch bore diameter. Wet-Flow Test Comparison 215 Iron Eagle 112.6 lbs/hr fuel flow rate215 Platinum 115.7 lbs/hr fuel flow rate... Most flow numbers for Hot Heads heads come from their Web Site updated Dec. '08. ... Chevy Fast Burn Off ZZ383 VJ 2.02 Int Smithberg Racing Alum: 210/78: 2.02/- LT4 VALVE SPRING KIT. Used on ZZ4, Fast Burn, LT4, and Iron Vortec Bowtie heads. Kit for 5.7L LT4 engines. Includes 16 P/N 10212808 lightweight retainers. Use with spring kit P/N 12495494 and key kit P/N 12495503. 24 Degree OEM X275 Class Accepted Valve Angle. 119cc Heart Shaped Combustion Chamber. Up to 2.350 Intake & 1.850 Exhaust Valves. Accepts up to 1.625 O.D. Springs. 290cc, 320cc or 370cc Intake Ports Available. Made in the U.S.A. This is where it all began... a powerful, out-of-the-box cylinder head design matched with an outstanding, unbeatable ...Use the chart below to view flow numbers. Flow Comparisons Between the. INDY EZ-295 vs. Hughes C.N.C's INDY EZ's. This chart is to show the difference in INDY EZ MaxWedge CNC vs. Hughes Max Wedge CNC on the same head. Flow tests below show results from our SAENZ 680 Flow Bench. Intake Port Volumes Exhaust Port Volumes. Part #:24502609 Installation Notes Comes with 12.75" externally balanced automatic transmission flexplate; change to externally balanced flywheel for manual transmission applications. Intended for pre-1977 street vehicles or all off-road vehicles. Not intended for marine use. Some assembly required.May 19, 2018 · Apr 26, 2018. 1,957. Yukon Oklahoma. I got my 906 casting vortec head back from the machine shop. Same shop and same SF600 flow bench that flowed my 601 heads. Those are 305HO heads. The Vortec heads came off a 1996 chevy truck Virgin. I did not do any valve or seat grinding all I did was a bowl port and thin the guides and lap the factory valves. Jul 01, 2001 · The standard size for the 220 head is 2.055-inch intake and 1.600-inch exhaust. World says a 2.080-inch intake valve will work, too, with a 1.625-inch exhaust valve for ported applications. Heck ... Trick Flow Specialties is a leading designer and manufacturer of high performance cylinder heads, intake manifolds, and engine components. Trick Flow products perform as advertised and exceed customer's expectations for performance and value. used salon equipment for sale The stock Vortec iron head will not tolerate more than .440-inch lift. We measured our stock iron heads right out of the box and the retainer-to-seal clearance was only .470-inch. Subtract the standard .050-inch clearance, this leaves only enough room for a .420-inch lift cam. That just won't do. But don't despair.Aug 01, 2017 · by NormS » Tue Aug 01, 2017 11:30 am GM Performance small block Fast Burn aluminum heads for sale. 0-12367712 casting number.Dual bolt pattern. 210cc Intake ports, 2.00/1.55 valves, 62cc chambers. Recently reconditioned, but not ported. Springs are for hydraulic flat tappet cam. $800 for the pair + shipping A 406 cubic inch small block is one of the most popular choices for Chevy powered sportsman drag racers seeking strong reliable power at reasonable cost. Careful planning and the right mix of parts can push the power close to 700 HP without exotic or costly components. Variations include the option to take the motor to 415ci, 421ci or even 434 cubic inches if so desired...All other Vortec and Vortec-style heads prohibited, including but not limited to Vortec Bow Tie, Edelbrock, EQ, GM Fast Burn, etc. No aluminum heads allowed. No aftermarket heads allowed . No port matching, no pocket porting or blending. No porting or polishing of any kind. No angle plug heads. Stock type stamped steel 1.5 ratio rockers only .Free Shipping - Summit Racing™ 64cc Aluminum Cylinder Heads for Small Chevy with qualifying orders of $99. Shop Cylinder Heads at Summit Racing. FINAL DAY! $20 Off $200 / $50 Off $500 / $100 Off $1000 - Use Promo Code: LABORDAY. ... Part Number: SUM-162112. Estimated Ship Date: Today. Overview. Applications. Recommended Parts. Replacement ...STS T1 245. Head Hunter Series Cylinder Heads/23°. BP HH SB O 229. BP HH SB RO 225. BP HH SB RO 234. 4.500 Bore Spacing Series Cylinder Heads/10°/12°/13°. FF 10 STD. FF 13 STD. WP BD 4510.Dec 15, 2004 · FAST BURN TECH If you're not familiar with the Fast Burn heads, here's some info. They're designed to fit any '58-00 283-400-cid small-blocks using a conventional water flow design, so that means... Chevrolet Performance’s Fast-Burn 23-degree cylinder heads deliver maximum performance for Small-Block engines. An aluminum head casting – distinguished by Chevy Bowtie logos at each end – and a valvetrain with high-rpm, LS-style beehive-type valve springs stretches the performance range of the heads to enable greater power at a higher rpm. SBC Eliminator - 23° Cylinder Head. Our ELIMINATOR line of SBC heads feature 100% 5-AXIS CNC ported intake, exhaust and combustion chambers; available in street and competition version. The 180cc, 190cc and 195cc models are CARB Certified EO #D-250-2 for vehicles model year 1994 and older. While our 210cc, 220cc, 227cc, 235cc, and 245cc SBC ...Factory Chevy Heads. Vortec Heads. Vortec Bow-Tie Heads. Bow-Tie Heads. Double Hump Heads. Open Chamber Heads. 602 Crate Motor Heads. 603 Crate Motor Heads. 604 Crate Motor Heads. 350 mains, 2-piece rear seal, splayed caps, gtp race block 10051182.................2 or 4...bowtie, 3.75"-4.30" bores, 1 or 2-piece rear seal 10051184.................4...bowtie, 4.00"-4.155" bores, 1 or 2-piece rear seal 10054727...350...86-up...2 or 4...one piece rear seal, some "made in canada" 10066036...350...........2 or 4...target …The new single plane EFI (Electronic Fuel Injection) intake manifold is designed to provide a broad RPM powerband for high-performance street/strip engine applications to a maximum engine speed of 7500 RPM. The manifold is designed to work with 4150 Style Throttle body EFI systems like the Holley 4150 style 112-587 and 112-588. These intake manifolds are designed to accept most stock hardware ...Yes both Speedmaster and Procomp heads are a good choice. I just checked the speedmaster website for a price comparison. A pair of complete heads are currently listed for $1820. Procomp heads that I have found listed on Shannon's engineering website are $1950 complete. Prices are close and performance is very similar when looking at the flow ...Convert the valvetrain on your aluminum Fast Burn heads to the beehive-type system used on Chevrolet Performance’s latest Fast Burn heads (P/N 19300955) — and used on the SP350, ZZ5, ZZ6, SP383, and ZZ383 crate engines and the CT400 — to gain greater high-rpm capability and valvetrain stability. 1995 polaris slt 750 value Sep 13, 2009 · Jul 26, 2001. 10,496. Columbia, MO, USA. They should have somewhere around 230 cc intake ports and great, altho small exhaust ports. And right, a 100 cc "heart-shaped" fast burn chamber! It's a shame we can't send a set to Mark, (aka, Vortecpro), and let him port them out to see what their full potential may be!! Replied by Steven1980 on topic 1998 chevy k1500 5.7 vortec misfire. one more thing all the spark plugs are 3 months old and all 8 spark plugs have a brownish blackish tarry streak down the sides of the porcelain below the electrode and its just a streak maybe 1/8 to 1/4 wide that travels to the bottom of the porcelain and the rest of the ...Trick Flow Specialties is a leading designer and manufacturer of high performance cylinder heads, intake manifolds, and engine components. Trick Flow products perform as advertised and exceed customer's expectations for performance and value.Dec 15, 2004 · FAST BURN TECH If you're not familiar with the Fast Burn heads, here's some info. They're designed to fit any '58-00 283-400-cid small-blocks using a conventional water flow design, so that means... The trench chamber discussed is for an "ideal" engine where anything goes, but many of the efficient burn characteristics can be applied to more conventional four and two valve heads. In any case, the chamber's greatest volume should be around the exhaust valve (with the piston at TDC) and the spark plug should be located high and in the same ...Sep 21, 2015 · The pricier 267-cc head is known for its torque and throttle response. Flow (cfm) increases 43.2 on the intake side and 15.5 on the exhaust while still using factory valves (note base-line flow numbers are considerably lower than the prior stock heads). Flow continues to rise at .700-inch lift making these a great pairing with a large camshaft. Engine Parts Number Lists Pg 36 - 39 Listing of Original Part Numbers List of Rebuild Part Numbers ... Each bolt has the familiar GM logo laser etched on the head as a quick identifier (Note: ... 9.6:1 compression ratio with "Fast Burn" aluminum heads and roller rockers make great power and lots of torque.Bowtie Rectangular-Port Aluminum Cylinder Head Assembly. $1,490.61. Quick View. Bowtie 572/720R Cylinder Head Assembly. $1,625.49. Quick View. Big Block Bowtie Rectangular Aluminum Cylinder Head (bare) $1,088.01. Quick View. TRICK FLOW TWISTED WEDGE SBC SMALL BLOCK CHEVY ALUMINUM HEADS PAIR ANGLED PLUGS. Opens in a new window or tab. ... IN STOCK AFR 1006 SBC 195cc Aluminum As Cast Cylinder Head Chevy Angle Plug 64cc. Opens in a new window or tab. Brand New. ... Number of bids and bid amounts may be slightly out of date. See each listing for international shipping ...Factory Chevy Heads. Vortec Heads. Vortec Bow-Tie Heads. Bow-Tie Heads. Double Hump Heads. Open Chamber Heads. 602 Crate Motor Heads. 603 Crate Motor Heads. 604 Crate Motor Heads. Chevy Vortec engine heads offerings are in "small port" (#25534351). This port has 185cc intake ports/65cc exhaust ports, and the larger port (#25534445) features 225cc input ports/77cc exhaust ports. When it comes to the question of the Best Vortec heads, many people consider the #906 to be better than the #062.Sep 21, 2015 · The pricier 267-cc head is known for its torque and throttle response. Flow (cfm) increases 43.2 on the intake side and 15.5 on the exhaust while still using factory valves (note base-line flow numbers are considerably lower than the prior stock heads). Flow continues to rise at .700-inch lift making these a great pairing with a large camshaft. Bowtie Rectangular-Port Aluminum Cylinder Head Assembly. $1,490.61. Quick View. Bowtie 572/720R Cylinder Head Assembly. $1,625.49. Quick View. Big Block Bowtie Rectangular Aluminum Cylinder Head (bare) $1,088.01. Quick View. matching serial numbers, also will come with the ZZ430 engine. The ZZ430 is based on the small-block, 350-cubic-inch ZZ4, which delivers ... The Fast Burn head uses GM Performance Parts' cast-ported technology. Cast-ported means that as incremental improvements in flow, combustion and cylinder fill were identified during the development process ...First up is changing the cam timing. The crate LS3 engine has a mild timing of .551/.524-inch lift, 204/211-degree duration, 117-degree lobe-separation angle (LSA). Fortunately for hotrod enthusiasts, the L92 cylinder heads have enormous flow potential, so why not install a high-performance cam.A flow bench is used to measure the intake and exhaust airflow of a cylinder head. A typical cast-iron Pontiac D-port measures 190 to 210 cfm of peak intake airflow at 28 inches of pressure. Most aftermarket aluminum castings flow anywhere between 260 and 330 cfm. Specialized castings can flow more than 400 cfm.The 187 casting data came from a Fast355 PM, and some came from Vizard's book Build & Modify Chevrolet SB Cylinder Heads. They confirm other tests on L98 heads. The 081 head (305 v8) was added because 081 (and 416) are often mentioned as being decent factory heads.There are a few exceptions such as ultra high compression or fast burn heads. These are the guidelines we have been using for over 25 years in the conversion business. As far as your engine with a single mixer it is going to start choking the engine down around 4700 rpm as that single mixer cannot flow enough to supply that size engine above ...TRICK FLOW TWISTED WEDGE SBC SMALL BLOCK CHEVY ALUMINUM HEADS PAIR ANGLED PLUGS. Opens in a new window or tab. ... IN STOCK AFR 1006 SBC 195cc Aluminum As Cast Cylinder Head Chevy Angle Plug 64cc. Opens in a new window or tab. Brand New. ... Number of bids and bid amounts may be slightly out of date. See each listing for international shipping ...Edelbrock Out of Box and Butler Built Unported Cylinder Heads. Shop Edelbrock Out of Box and Butler Built Unported Cylinder Heads Shop All » D-Port Cylinder Heads (Out-of-the-Box) Edelbrock; Rd-Port Cylinder Heads (Out-of-the-Box) Edelbrock View All » Head Builder Series Kits; Victor Pro Port Cylinder Heads; CNC Cylinder Head Porting ServicesConstructed from high-quality cast iron, these heads are perfect for racing classes where iron heads (standard 2.02-inch intake & 1.600- inch exhaust valve sizing) are required.Bowtie Rectangular-Port Aluminum Cylinder Head Assembly. $1,490.61. Quick View. Bowtie 572/720R Cylinder Head Assembly. $1,625.49. Quick View. Big Block Bowtie Rectangular Aluminum Cylinder Head (bare) $1,088.01. Quick View. RB/B, LA Cylinder Head Casting Numbers The casting numbers for most RB, B, and LA heads are found in two places. On the underside of the head on an intake runner, and under the valve cover on an intake runner.Trick Flow Specialties is a leading designer and manufacturer of high performance cylinder heads, intake manifolds, and engine components. Trick Flow products perform as advertised and exceed customer's expectations for performance and value.Edelbrock Out of Box and Butler Built Unported Cylinder Heads. Shop Edelbrock Out of Box and Butler Built Unported Cylinder Heads Shop All » D-Port Cylinder Heads (Out-of-the-Box) Edelbrock; Rd-Port Cylinder Heads (Out-of-the-Box) Edelbrock View All » Head Builder Series Kits; Victor Pro Port Cylinder Heads; CNC Cylinder Head Porting ServicesThis GM Fast Burn head offers both intake patterns on the same head, which makes intake selection easier with this head. ... If you are just looking for a set of inexpensive aluminum heads to use on a street cruiser, the L-98 Corvette heads perform decently. The port flow numbers are roughly equivalent to a decent set of older iron heads like ...If the fuel pressure drops more than 1 psi under 8-10 seconds of full throttle the pump should be changed and dont put the stock TBI pump back in even if your engine is stock. Put the 1996 Vortec EP381 pump back in. MUCH better pump than the EP386 TBI pump. Now to the too much fuel.Chevrolet Performance Fast Burn Cylinder Heads These CNC-machined aluminum Fast Burn cylinder heads from Chevrolet Performance are designed for 1958-2000 283-400 c.i.d. Chevy V8s. They quickly and completely burn the air/fuel mixture, ensuring higher cylinder pressure and more power.(using Super Flow 600 flow bench at 28 inches of H2O) The heads were equipped with 2.02-inch intake and 1.60-inch exhaust valves-the exceptions include the Brodix Track-1 (2.080-inch intake valves)...A larger intake valve and / or Chevy rocker arms from a 250 / 292 will help. The head from a carbed engine will flow better than an EFI head due to the valve shrouding on the EFI head, but the fast-burn characteristics make the EFI head a better choice for best fuel economy. The carbed head is also easier to modify for Chevy rockers. Love those ...The reason why the engine will idle rough is because it's not getting as much fuel as it needs to idle and maintain the necessary engine revs. Locate the fuel filter along the frame of the truck (driver's side). Remove filter from fuel lines. Inspect it and replace if necessary. Figure 3.EdelbrockSep 27, 2017 · The stock Vortec iron head will not tolerate more than 0.440-inch lift. We measured our stock iron heads right out of the box and the retainer-to-seal clearance was only 0.470-inch. Subtract the standard 0.050-inch clearance, this leaves only enough room for a 0.420-inch lift cam. That just won’t do. But don’t despair. This lost power could be easily regained by using aluminum heads fitted with bore-clearing 1.94/1.50 or 1.55 valves, such as those offered by GM or Air Flow Research. Not only do the heads flow much better than 305 iron castings, but aluminum's superior heat-rejection characteristics allow 10:1 street engines on available unleaded premium pump gas.The Vortec cylinder heads fast burn combustion chamber and high velocity ports combine to produce big horsepower out of the box. ... Vortec heads fit all small block engines produced 1955 to present, excluding LT1/LT4 reverse coolant flow engines and current LS1 style engines. Heads come completly assembled with valves, springs, retainers, and ...Sep 13, 2009 · Jul 26, 2001. 10,496. Columbia, MO, USA. They should have somewhere around 230 cc intake ports and great, altho small exhaust ports. And right, a 100 cc "heart-shaped" fast burn chamber! It's a shame we can't send a set to Mark, (aka, Vortecpro), and let him port them out to see what their full potential may be!! Bowtie Rectangular-Port Aluminum Cylinder Head Assembly. $1,490.61. Quick View. Bowtie 572/720R Cylinder Head Assembly. $1,625.49. Quick View. Big Block Bowtie Rectangular Aluminum Cylinder Head (bare) $1,088.01. Quick View. Visually similar to the 461 heads (GM # 3782461) which first appeared on the 1961 Corvette "fuelie" No accessory bolt holes, just like the original heads Heads are sold EACH Aluminum heads shave 40 lbs. off the nose of your car vs. iron heads Improved port/chamber shape for better performance and efficiency Standard port location for use with most intake and exhaust manifolds 180cc intake ...May 19, 2018 · Apr 26, 2018. 1,957. Yukon Oklahoma. I got my 906 casting vortec head back from the machine shop. Same shop and same SF600 flow bench that flowed my 601 heads. Those are 305HO heads. The Vortec heads came off a 1996 chevy truck Virgin. I did not do any valve or seat grinding all I did was a bowl port and thin the guides and lap the factory valves. Jul 15, 2014 · Chevrolet Small Block Head Casting Numbers; Casting # Combustion Chamber Size (CCs) ... reverse flow, 175cc intake ports, 68cc exhaust ports ... Fast burn, aluminum ... February 22, 2017. A class action lawsuit filed against General Motors alleges that 2010 through 2013 vehicles with "Generation IV 5.3 Liter V8 Vortec 5300 engines" are defective. The complaint asserts that "the piston rings, PVC system, and Active Fuel Management ('AFM') System used in the Class Vehicle's engines were defective ...(using Super Flow 600 flow bench at 28 inches of H2O) The heads were equipped with 2.02-inch intake and 1.60-inch exhaust valves-the exceptions include the Brodix Track-1 (2.080-inch intake valves)...Originally sold bare, so valve sizes are dependent on machining. All 400ci small-blocks utilize Siamese cylinder walls. This design caused the cooling system to develop hot spots and that is why the 400 heads have steam holes. 25534351C: 2004 Bow Tie, cast-iron, Vortec, 175cc intake ports, 65cc exhaust ports, 2.02/1.55-inch valves.Team Chevy driver Scott McLaughlin dominated the NTT INDYCAR Series' Grand Prix of Portland on Sunday, ensuring he remains in championship contention with just one race to go. Although Steve and Danielle Locklin's 1970 Chevy C10 is one of the country's most recognizable trucks, in many ways, it is never finished.If the fuel pressure drops more than 1 psi under 8-10 seconds of full throttle the pump should be changed and dont put the stock TBI pump back in even if your engine is stock. Put the 1996 Vortec EP381 pump back in. MUCH better pump than the EP386 TBI pump. Now to the too much fuel.If the fuel pressure drops more than 1 psi under 8-10 seconds of full throttle the pump should be changed and dont put the stock TBI pump back in even if your engine is stock. Put the 1996 Vortec EP381 pump back in. MUCH better pump than the EP386 TBI pump. Now to the too much fuel.In the GM Performance Parts catolog it says "When tested on a 383 ci small block engine with 9.5 to 1 compression ratio and .540" lift roller cam, single plane intake manifold and 750 cfm Holley carburator, the Fast Burn heads produced 497 hp at an incredibly low 5,800 rpm".DFW or FLW Files A Package of more than 2925 flow files for use with Dyno simulation programs. I have formatted each cylinder heads information into individual files for use with different versions of DeskTop Dyno, DynoSim, Comp Cams CamQuest program, Dynomation Versions 4 and 5 and Performance Trends Engine Analyzer.24 Degree OEM X275 Class Accepted Valve Angle. 119cc Heart Shaped Combustion Chamber. Up to 2.350 Intake & 1.850 Exhaust Valves. Accepts up to 1.625 O.D. Springs. 290cc, 320cc or 370cc Intake Ports Available. Made in the U.S.A. This is where it all began... a powerful, out-of-the-box cylinder head design matched with an outstanding, unbeatable ...Sep 13, 2009 · Jul 26, 2001. 10,496. Columbia, MO, USA. They should have somewhere around 230 cc intake ports and great, altho small exhaust ports. And right, a 100 cc "heart-shaped" fast burn chamber! It's a shame we can't send a set to Mark, (aka, Vortecpro), and let him port them out to see what their full potential may be!! Chevrolet Performance Fast Burn Bare Aluminum Cylinder Head, Small Block Chevy. Fast Burn Bare Aluminum Cylinder Head. Small Block Chevy. 210cc Intake Ports. 62cc Combustion Chambers. Valves: 2.000 in. Intake/1.550 in. Exhaust. Sold Individually. View Details. $861.61.Chevy Vortec engine heads offerings are in "small port" (#25534351). This port has 185cc intake ports/65cc exhaust ports, and the larger port (#25534445) features 225cc input ports/77cc exhaust ports. When it comes to the question of the Best Vortec heads, many people consider the #906 to be better than the #062.Bowtie Rectangular-Port Aluminum Cylinder Head Assembly. $1,490.61. Quick View. Bowtie 572/720R Cylinder Head Assembly. $1,625.49. Quick View. Big Block Bowtie Rectangular Aluminum Cylinder Head (bare) $1,088.01. Quick View. Most flow numbers for Hot Heads heads come from their Web Site updated Dec. '08. ... Chevy Fast Burn Off ZZ383 VJ 2.02 Int Smithberg Racing Alum: 210/78: 2.02/- Oct 23, 2018 · Re: GM SBC fast burn feedback. by Ks Fats » Wed Oct 24, 2018 2:58 am. Governor, The Brzezinski claim regarding porting is in reference to the head as it is used on the 604 platform; use of that head on other applications will benefit from porting (as Randy said). Even the 604 will benefit from a cleaned up valve job as the factory is sometimes ... The Vortec head uses 1.94" intake valves and 1.50" exhaust valves to compliment the high velocity port design. The Vortec head out flows the Bow tie head out of the box and is a 20 to 40 horsepower bolt on increase over earlier cast iron small block heads. March 18, 2021 by Tom Harbid. The Vortec 6.0 is an engine made by General Motors. The engine is primarily used in the company's heavy-duty vans, SUVs, and pick-up trucks. The Vortec 6.0 is part of the General Motors family of engines called LS that has a displacement range of 4.8- to 7.0-liter.Dec 18, 2006 · Both heads were flowed at a 28-inch test depression on a 4.060-inch bore diameter. Wet-Flow Test Comparison 215 Iron Eagle 112.6 lbs/hr fuel flow rate215 Platinum 115.7 lbs/hr fuel flow rate... It's aluminum heads and intake, 345 horsepower, street legal high flow dual catalytic converters, dual snorkel air cleaner, computer and chip combination, make for a complete engine swap kit which should not be overlooked.Sep 13, 2009 · Jul 26, 2001. 10,496. Columbia, MO, USA. They should have somewhere around 230 cc intake ports and great, altho small exhaust ports. And right, a 100 cc "heart-shaped" fast burn chamber! It's a shame we can't send a set to Mark, (aka, Vortecpro), and let him port them out to see what their full potential may be!! America's favorite high-performance cast iron small block cylinder heads offer big power and bigger value. Chevrolet Vortec Cylinder Heads' fast burn combustion chamber and high-velocity ports combine to produce big horsepower. Vortec Heads can be mildly ported for additional performance and milled up to .040'' for increased compression ratio. Engine Parts Number Lists Pg 36 - 39 Listing of Original Part Numbers List of Rebuild Part Numbers ... Each bolt has the familiar GM logo laser etched on the head as a quick identifier (Note: ... 9.6:1 compression ratio with "Fast Burn" aluminum heads and roller rockers make great power and lots of torque.matching serial numbers, also will come with the ZZ430 engine. The ZZ430 is based on the small-block, 350-cubic-inch ZZ4, which delivers ... The Fast Burn head uses GM Performance Parts' cast-ported technology. Cast-ported means that as incremental improvements in flow, combustion and cylinder fill were identified during the development process ...March 18, 2021 by Tom Harbid. The Vortec 6.0 is an engine made by General Motors. The engine is primarily used in the company's heavy-duty vans, SUVs, and pick-up trucks. The Vortec 6.0 is part of the General Motors family of engines called LS that has a displacement range of 4.8- to 7.0-liter.Built with an extra-thick ¾-inch deck for nitrous applications, the Airflow Research 1034 heads are rated for up to .600-inch of valve lift and their ideal operating range is around 5,500 RPM. Flow rating at .400-inch lift is 240cc. AFR cylinder heads are available from Jegs and other performance engine parts suppliers and retail for $1,465 pair.The Brodix Fast Burn head offers reputable flow potential with amediumport volume to promote outstanding torque for medium- displacement small blocks. ... The production iron GM head for the early Vortec engines is an outstanding example of a 170cc intake port that offers excellent low and mid-lift flow that is perfect for a mild 383 or torquey ...Vortec is a trademarked name for a line of small block engines for General Motors trucks. The name first appeared in a 1984 advertisement for the 1985 model year 4.3 L V6 that used "vortex technology" to create a vortex inside the combustion chamber, creating a better air/fuel atomization. GM introduced its Vortec line of engines in the mid ...The stock Vortec iron head will not tolerate more than .440-inch lift. We measured our stock iron heads right out of the box and the retainer-to-seal clearance was only .470-inch. Subtract the standard .050-inch clearance, this leaves only enough room for a .420-inch lift cam. That just won't do. But don't despair.Aug 01, 2006 · Trick Flow currently offers three types of cylinder heads: a CNC ported LS1 Chevy head with 215 cc intake ports, a 13.5° valve angle for improved airflow, and relocated spark plug holes. Combustion chambers are 64 cc. The company also has a bolt-on 23° SB Chevy head for 327 to 400 cid motors with 175 cc runners and 55 cc combustion chambers. The Fast Burn head combines new technologies with the best of GM motorsports and production cylinder head technologies. The design creates tremendous power on engines from 35 to over 400ci. The name Fast Burn refers to the heads ability to quickly and completely burn the air furl mixture, resulting in higher cylinder pressures and more power.The stock Vortec iron head will not tolerate more than .440-inch lift. We measured our stock iron heads right out of the box and the retainer-to-seal clearance was only .470-inch. Subtract the standard .050-inch clearance, this leaves only enough room for a .420-inch lift cam. That just won't do. But don't despair.The CNC-machined Fast Burn heads require no additional porting for optimal performance, so all you need to do is bolt them onto your Small-Block and go! They can be used on any Small-Block engine with at least 4.000-inch bores and the standard-flow coolant system. Not for use on Gen II 1992-96 LT1/LT4 engines with reverse-flow cooling system.Sep 05, 2006 · 41 Posts. #6 · Sep 9, 2006 (Edited) The ramp is there to promote swirl (rotating flow) inside the cylinder, so that when the plug ignites, the mixture burns quickly. In the mid 80s GM called it a fast burn head, and they typically needed only 24 to 30 degs of ignition advance for optimum torque and power. The following prefixes are for Turbo heads: E3ZE inline intake bolt pattern E5RY new maching and slight casting changes E7SE slight change in alloy and valve seat inserts Another source lists the part numbers as E5ZE-EA and E6ZE-AB are turbo head casting numbers. the current part number for a reman head from ford is E7SZ-6049-AXDec 18, 2006 · Both heads were flowed at a 28-inch test depression on a 4.060-inch bore diameter. Wet-Flow Test Comparison 215 Iron Eagle 112.6 lbs/hr fuel flow rate215 Platinum 115.7 lbs/hr fuel flow rate... May 14, 1999 · CR, 750 Holley, headers and an Edelbrock Performer RPM dual plane intake made 430 hp at 5600 rpm and 431 ft/lbs. of torque at 4000 rpm. Very impressive for an over the counter street motor on 92... Heads have custom Serdi valve job W/ extra chamber cuts for increase in low lift air flow.... Posted Yesterday, 5:39 PM Early Access. $4,000. ... SBC Heads 15 Degree Brodix titanium valves 18 degree GM Bowtie heads TIT 218 valves Ready to bolt on $1800 each contact 318-617-4806 Posted on 09/04/2022 g wagon 4x4 squared brabus pricexa