GM LS2 LS6 Gen III Gen IV Cylinder Head 799 Assembly w/ Rocker Arms OEM-This is a Remanufactured OE Stock LS2, LS6, 4.8L , 5.3L, 5.7L, 6.0L Gen III / ... * Specs : Combustion Chamber Volume: 64.45cc Intake Port Volume: 210cc ... GM Chevrolet 6.0L LS GEN IV 58X Tooth Crankshaft POLISHED STND Size 12685651. Your Price: $275.95 Out of Stock. Free ...LSXceleration Stainless Steel 8mm x 1.550 LS Exhaust Valve 15-21550-1 Stainless Steel LS Valves 1.550" Head x 8mm Stem x 4.915" OAL x 0.160" Tip Features: Hardened Stem Tip Chrome Plated Stem Fully Machined Surface Swirl Polished Undercut... 15-21550-1 $12.00 Add to Cart Compare. Add to Cart Compare. LSXceleration ...The springs on the three sets of EQ cylinder heads in our test were swapped for a set of Comp Cams 26918-16 coils (street price, $193), which have specs at 125 lbs seat pressure and 367 lbs. at ...Upgrade your Chevy 5.3L V8 engine with our Remanufactured 99-06 Chevy 5.3L V8 706/862 Aluminum Cylinder Head (Part#: ALL-20314). To ensure a high level of performance, these Chevrolet heads are built to exceed OEM specifications. These 706 heads for sale are perfect for your 5.3L V8 engine, offering enhanced power and efficiency.Engine Mods - 5.3L 706 heads on a LS1 make 11:1 compression? - read that 9.5 : 1 is the stock head specs of a 706 but that is on a 5.3 engine. Is the compression closer to 11:1 on a LS1 block?241 was used on 01-04 LS1 engines. They both have a 66.67 cc combustion chamber (10.1 CR), 200cc intake runners, and 70cc (round) exhaust ports. The 243 head is the 01+ LS6/LS2 head. It has a smaller 64.45cc chamber for more compression (10.5 CR on LS6), 210cc intake runners, and 75cc D-shaped exhaust ports.The LY6 engine is a 6.0L Gen. 4 small block engine used in GM trucks and SUVs between 2007 and 2010. For marketing purposes, it was also known as the Vortec 6000. The engine specs and information listed here is for a stock LY6 engine. Mechanically similar, General Motors' LS and LS-based Vortec engines wound up on almost every branch of the ...The 5.7L LS6 is the most powerful Gen. 3 small block engine as it came from the factory. It is an improved version of the LS1 produced for the 2001 Z06 Corvette. The LS6 powered the 2001-04 Corvette Z06 and the 2004-05 Cadillac CTS-V. Mechanically similar, General Motors’ LS and LS-based Vortec engines wound up on almost every …Manufacturer: Chevrolet. Year Range: 97-04. Engine Size: 5.7L - 350ci - V8. Description: Cylinder Head 97-04 Chevy LS1/LS6 243/799 - PAIR. Upgrade your Chevy LS1 or LS6 engine with this pair of remanufactured Cylinder Heads designed to exceed OEM specifications. These Cylinder Heads are specifically crafted for the 97-04 Chevy models with a 5 ...The LM4 is a 5.3L, Gen. 3 small block engine used in GM trucks between 2003 and 2005. It’s is very similar to the LM7, except that it’s built on an aluminum block, and the LM7 is an iron-block engine. For marketing purposes, the LM4—like the LM7—was also known as the Vortec 5300.CAN YOU MAKE MORE THAN 500 HP NA WITH STOCK 706 HEADS? DO 799 HEADS MAKE MORE HP THAN 706 HEADS? WHAT MAKES MORE HP, REC PORT OR CATH PORT HEADS? …The LQ4 and LQ9 are Gen. III, 6.0L, iron block, truck engines. The LQ4 served in anything from bread-vans and boats to SUV's between 1999 and '07. It started off life like any normal truck engine. Iron heads, small cam and the old SBC crank rear flange thickness. That changed in 2001 when GM threw in the bigger cam and aluminum heads ...Part Number: 134-3610 & 134-3710 Application: Chevy Gen III LS Series (2004 & later) 8740. Inspect all hardware prior to installation. Look for obvious defects or shipping damages. Please call 800-826-3045 with any questions or issues. To ensure proper thread engagement and accurate torque readings, clean all threads in the block.The 1981 Chevrolet C-10 truck was part of a line of C- and K-series trucks produced by the carmaker for decades. The truck came in a number of variations with different engine opti...The Peanut Port heads were introduced on the Gen V big blocks and were designed for truck applications. The ports are 1.56" tall and 1.44" wide. The smaller runner was designed to increased flow at lower rpm to help increase low rpm power and torque. These heads are not recommended for high revving performance applications.After installation of the TrackMax cam, the power output of the 6.0L LY6 jumped from 443 hp and 467 lb-ft of torque to 514 hp at 5,900 rpm and 493 lb-ft of torque at 4,600 rpm. Gandrud Chevrolet ...4.8L/5.3L Truck 862 and 706 Head castings While the 706 Heads are a SPM = Semi Permanent -mold And considerd to be a more consistant head casting then the 862 wich …706 Heads on a 06 5.3. Jump to Latest Follow. 16K views 9 replies 6 participants last post by LiftedLQ9 Nov 12, 2008. B. Biggsw784 Discussion starter. 246 posts · Joined 2006. #1 · Nov 10, 2008. I am pulling the heads off my 5.3 to replace the lifters due to one of them collipsing. While I have these heads off, I was going to get them milled ...Cylinder Head Options; Technical Specs; ... Description. LS 706/862 BARE. Additional information. Weight: 28 lbs: Related products. GM 1.9 SATURN NEW BARE $ 498.00 Add to cart. GM 2.5 642R NEW BARE ... $ 363.00 Add to cart. Performance. Performance Cylinder Heads. PROJECT X SERIES LS XXTREME SERIES SHOCKER SERIES …Street Performance of The 706 Head. It’s worth noting that the 706 heads have a larger combustion chamber than the 862 heads, which measures at around 71cc. While this might sound like a disadvantage, it can actually be helpful for engines running on lower-octane fuel or those using forced induction.HEAD LS 706/862 ASSM. Part Number: 723-LS706N. Product Q&A. View Now. $532.86. Lowest Price Guarantee. See more product details. Free Shipping - Estimated to ship direct from manufacturer on 03/25/24 , pending manufacturer availability. Learn More.Chevrolet Performance LS-series Valve Springs are designed, manufactured and tested to keep the correct seat and open pressures on the intake and exhaust valves for a variety of cylinder head applications. Handles valve train stress more efficiently to lessen chances of damage at high RPM's. Chevrolet Performance Parts are designed to service ...Cylinder Head Specifications. 1997-1998 Casting Numbers with perimeter valve cover bolts: 10215339, 12550592, 12558806. ... Other Specifications. Intake Manifold: LS1. Throttle Body: 78mm, 3-Bolt. Throttle Control: Corvette = Drive By Wire, F-Body / GTO = Cable Throttle. Fuel Injector Flow:Description. This program works on the following head casting numbers: 862. 706. Now you can get this porting service on your cylinder heads at an incredibly low cost! Simply follow this procedure: Remove the cylinder heads from your car. Disassemble cylinder heads to completely bare condition. Wash cylinder heads.WHICH STOCK LS HEAD MAKES THE MOST POWER? SHOULD I UPGRADE MY STOCK 6.0L HEADS? DO CATHEDRAL-PORT HEADS MAKE MORE TORQUE THAN A REC-PORT HEADS? WHAT ABOUT TH...In addition to the lack of EGR provisions and steam-tube clearance, the LS6 intake differs from the LS1 in its plenum volume, runner shape, and volume. Jumping from .536 to .541 liters proved much more …Cylinder Head, GenX® 215, CNC Competition Ported, Assembled, 64cc CNC Chambers, Ti Retainers, GM LS1, Each See More Specifications ... Trick Flow® GenX® 215 Cylinder Heads for GM LS1 TFS-3061T001-C01 TFS-3061T001-C01. Part Number: TFS-3061T001-C01. Estimated Ship Date: Aug 22, 2024. $1,330.99. Overview. Applications. Recommended Parts ...Upgrade your LS1 or LS6 engine with our Remanufactured CNC Ported 243/799 Cylinder Heads with .650 Springs and 2.02/1.59 Valves. These high-performance heads, designed by Chevrolet, are meticulously remanufactured to exceed OEM specifications, ensuring top-notch quality. These CNC Ported LS heads, part number ALL-65056PC, fit engines within the ...May 31, 2017 · The 706 is easier to get higher compression out of unless the 241 has the chambers welded up and is then CNC'd. I had a set of TEA Stage 2 706 heads on my 99 TA for the last ~15 years and 128,000 + miles. Your compression with the 5.3 heads should have bumped you up to 10.6 as long as your short block is stock.Cam-to-Crank Centerline. 4.914 in. Keeping 5.7-liter displacement, LS1 is the 3rd generation of GM's Small Block V8 motors. The fresh engine had much in common with its predecessor, Gen II LT1, but featured modified displacement, external dimensions plus rod bearings. Throttle Body, Fuel Injectors, Oil Pan Specs & More.The LC9 engine is a 5.3L, Gen. 4, aluminum small block engine used in GM trucks and SUVs between 2007-2011. For marketing purposes, it was also known as the Vortec 5300. The engine specs and information listed here is for a stock LC9 engine. Mechanically similar, General Motors' LS and LS-based Vortec engines wound up on almost every branch ...Aug 29, 2022 · The 5.3 liter LS-series engine was offered from 1999-2014 and has a 3.78” bore x 3.62” stroke. The block was offered in both cast-iron and aluminum with aluminum cylinder heads. Camshaft specifications varied depending on the year and RPO code of the engine.Richard pits a set of stock truck cylinder heads against each other! 706 vs 317's. NA vs Boost. NA vs Boost. Upgraded COMP Cams camshaft, our best selling valve springs, and some Holley on board!Casting Number 706 and 862 Head: 1999+ 4.8L / 5.3 Liter Truck Material: Aluminimum Part Number: 12559862 12561706 Combustion Chamber Volume: 61.15cc Compression Ratio: 9.5:1 Intake Port Volume: 200cc Exhaust Port Volume: 70cc Intake Valve Diameter: 1.89 inches Exhaust Valve Diameter: 1.55 inches Stock Head Flow Numbers741 posts · Joined 2004. #11 · Jul 12, 2022. If you want to make power with a 5.3, you need compression or boost. The 799/243 head is great for flow, but given that your engine originally came with 706 heads, it likely has dished pistons. The 799/243 will kill what little compression you have now unless you mill them.Feb 18, 2024 · This also means that they are usually cheap to collect or replace. 706 heads tend to be more popular than 243 heads with those who run naturally aspirated engines. While they don’t have the same size combustion chamber they also don’t have the tendency to lower the compression ratio and reduce horsepower. When looking to replace your heads ...Find many great new & used options and get the best deals for Chevy Truck LS 706 / 862 CYLINDER HEADS SET 4.8 5.3 GEN III IV at the best online prices at eBay! Free shipping for many products!With the smallest displacement of all the engines in the LS lineage, the 4.8L is probably the closest you’ll get to an “under-the-radar” LS. But that’s good news for you, because they’re often easy to come by in junkyards and relatively cheap. Yet thanks to an iron block, the 4.8L LS can support big horsepower, particularly if you ...Feb 9, 2021 · This is a Rebuilt OE Stock LS 4.8L , 5.3L Cylinder Head Assembly. Part # : 706 , 862 also fits. Description : Stock LS Series 4.8L / 5.3L Cylinder Head. Compatible with LR4 / LM7 / LM4 Engines. Specs : Combustion Chamber Volume: 61.15cc Intake Port Volume: 200cc Exhaust Port Volume: 70cc Intake Valve Diameter: 1.89 inches Exhaust Valve Diameter ...706 5.3L HEADS vs 241, 799/243 vs 317s. WHICH HEADMAKES MORE? We compared the four most popular stock LS heads in a back to back shootout. We ran the 706/862...The Definitive Guide to LS Engine Specs and LS Engine Upgrades. Posted 10/03/19 by OnAllCylinders Staff. Last updated on 05/03/2024. (Image/Summit Racing) This is the ultimate LS engine swap or engine upgrade resource. Scroll through the tables below to find the LS or LS-based Vortec truck engine that you own or are interested in building.This head is "designed to have the intake configuration of a LS3 head, but fit the smaller bore blocks of the LS1 and LS6 engines.". Hardest of the Hardcore: LSx-DR - Part Number 19166979. Huge CNC'd intake ports, huge valves, and huge power potential all define the LSX-DR heads. LSX-DR Specs:Feb 9, 2021 · This is a Rebuilt OE Stock LS 4.8L , 5.3L Cylinder Head Assembly. Part # : 706 , 862 also fits. Description : Stock LS Series 4.8L / 5.3L Cylinder Head. Compatible with LR4 / LM7 / LM4 Engines. Specs : Combustion Chamber Volume: 61.15cc Intake Port Volume: 200cc Exhaust Port Volume: 70cc Intake Valve Diameter: 1.89 inches Exhaust Valve Diameter ...Vortec LS-series heads cannot fit on the classic SBC-style engine. ... Chevy Cylinder Head LS 5.3L V8 706/862 Aluminum - Pair, Year:99-06 . David Perry. Great product Great customer service Quick delivery. W . CNC Ported LM4/LM7 706/862 Cyl Heads .650 Springs 2.00/1.57 Valves PAIR .The result of a point of compression adds 1.5 to 2.0 percent, or about 10 hp, automatically to the AFR 245 heads. To make this a fair fight, we gave the two factory heads the same percentage and ...CNC Ported LS 5.3L 706 / 862 Cylinder Heads, Customer Supplied Bare Casting. $599.95. Buy in monthly payments with Affirm on orders over $50. Learn more. Options. Resurface for MLS Gaskets + $150.00. Valve Job with new Valve Guides + $400.00. Cylinder head Assembly + $150.00. Add to Cart.Specs: 2002 LQ4 bored out 20 thou to 4.02 ... old school SBC and SBF static and dynamic compression ratios do not apply to LS heads. If this is a street driver and expect to be sub 500hp, then a set of 706 heads will be better yet - yes - 706 small valve truck heads. ... The 706 heads have a 61.15cc combustion chamber whereas the 243's have a ...Speedmaster LS Head Studs - Speedmaster 3-Bolt Head Stud Kit 1997-03 Chevy LS - JEGS. Free Shipping over $199* Same Day Shipping before 10pm* Price Match Guarantee; ... Torque Specs with Motor Oil: 30lb 1st pass, 60lbs 2nd pass, 80lbs 3rd pass. 28lbs for exhaust ports. Torque Specs with Degrees:The 5.3L engines are equipped with 862-cylinder heads. The castings of cylinder heads are similar to that of 706 heads. 862 heads feature the following; 200cc intake runners, 1.890/1.550 in. valve combo, and 61cc combustion chamber volume. The 5.3L 862 cylinder heads have a cathedral shape intake port and an oval shape exhaust port.Today is an interesting video and a followup to one of my previous videos comparing all of the factory big block mopar heads except that this time I will be ...243/799 LS CNC Ported Heads. Speed Works has teamed up with Wilkes Performance to bring you the most powerful heads available. We have a few options you can purchase such as a pair of Stage 1, Stage 2, Stage 3, or Stage 4 LS 243/799 Cathedral casting 5 axis CNC Porting with stainless valves and WP .660 dual race springs with WP titanium retainers.[Editor’s Note: This LM7 engine upgrade guide is part of a series of LS engine upgrade guides assembled by a team of LS experts at Summit Racing that we are sharing at OnAllCylinders. For a primer on the entire LS engine universe, read LS Engines 101: An Introductory Overview of the Gen III/IV LS Engine Family.]. Intro to LM7 Engines. Meet …These heads can be CNC ported to remove the vane and improve airflow. RPO LS7 cylinder heads are 356-T6 aluminum with 70cc CNC ported combustion chambers, raised square port, CNC ported …Feb 13, 2018 · The LQ4 and LQ9 are Gen. III, 6.0L, iron block, truck engines. The LQ4 served in anything from bread-vans and boats to SUV’s between 1999 and ’07. It started off life like any normal truck engine. Iron heads, small cam and the old SBC crank rear flange thickness. That changed in 2001 when GM threw in the bigger cam and aluminum heads ...Brian Tooley Racing (BTR): This is another top player in the market, offering a range of cams designed for LS engines like the 5.3 with 706 heads. Their stage 4 cam and the torque cam are popular choices. This product is recommended due to the following factors: Highly compatible with 5.3 engines and 706 heads.Fuller transmissions, products of Eaton Corporation, provide power and quality for almost all heavy-duty vehicles. With several different types of speeds, from 5- to 18-speed trans...Previously, we compared the stock 706/862 heads to the 799/243 heads on a cammed 5.3L test motor. There was much uproar among 799/243 head enthusiasts. Than...Nov 24, 2021 · Below are its specifications. 706 5.3L Truck Castings. Valve size: Intake- 1.89, Exhaust-1.55. Port Volume: Intake- 197cc, Exhaust- 69cc. Combustion Chamber: 61.5 cc. Benefits of Casting Chevy 706 Heads. Most affordable, powerful, and effective. Superior to 862 heads in reliability and performance.The 5.3L LS Engine Family. The 5.3L LS, or Vortec 5300, is primarily a truck/SUV engine that spanned both the Gen. III and Gen. IV versions of the GM LS lifespan. It’s essentially a longer-stroke version of the 4.8L LS and powered vehicles such as the Silverado, Sierra, Yukon, and Escalade. The engine is made with both cast iron …The 799 and 862 heads have their own pros and cons. While the 799 heads offer better flow and performance, the 862 heads offer better combustion chamber design and improved efficiency. Ultimately, the choice depends on the specific needs and goals of the engine. Pros of Using 862 Heads. Cons of Using 862 Heads.706 heads were per the year of the truck, and some what engine they are off of. basically gen3 ls blocks. on both 5.3l and 4.8lwhere the 4.8l had flat top and 5.3 were dished. 799/243 are the same head just depends where they were made. started getting used in the higher performance engines like the l33 and then later put on the gen 4 5.3l ...Despite numerous differences the Gen III LS Engine and Gen IV LS Engine cylinder blocks share a lot of the same traits. 4.400 Bore Spacing (same as the original SBC) Deep Skirt Block with Six Bolt Cross Bolted Main Bearing Caps (reminiscent of the old Ford side oilers, FE, and some early hemi blocks) Center Main Thrust Bearing. 9.240 Deck Height.The Gen III have 862/706 Gen III heads, and the Gen IV have 243/799 heads. The 862/706 heads have smaller combustion chambers than the Gen IV, raising the compression ratio when swapped directly.As indicated previously, the cam offered gains as high as 59 hp at 6,400 rpm, but for truck owners, the real story is the extra 20 lb-ft of torque offered from 2,500-4,500 rpm. Combine that with ...GM 4.8 5.3 OHV Cylinder Head Casting # 706 LS V8 Chevy Silverado Suburban GMC Yukon 1999 - 2007. ... - All parts are cleaned and inspected before final assembly to meet AERA specifications. NO UPFRONT CORE CHARGE CORE RETURN REQUIRED WITHIN 21 DAYS OF DELIVERY PREPAID RETURN LABEL(S) PROVIDEDWHAT STOCK LS HEAD MAKES THE MOST POWER? WHICH CAM SHOULD I RUN IN MY 6.0L? WHAT IS THE BEST STOCK 6.0L CAM TO USE? STOCK 6.0L UPGRADES! ARE THE 706/862 HEAD...Object moved to here.Ford cars come in all shapes and price ranges. See pictures and learn about the specs, features and history of Ford car models. Advertisement Ford models come in all shapes and pri...In total he has posted nine videos on at-home LS head porting, showing steps ranging from shaping the valve guide bosses to blending. This particular video is part 4, all about porting the Short Turn Radius in the floor of the intake ports. This area has a small hump that acts as a speed-bump, and can really slow down your intake charge's ...706/862 LS CNC Ported Heads. $ 1,100.00 – $ 1,845.00. Add to cart. SKU: wp-706/862 Category: HEADS/PORTING SERVICE. Description. Additional information. Speed …Cast #: 706, 862. GM 4.8 5.3 V8 C#706, 862 Assembled Cylinder Head. $499.99 Price. Quantity. Add to Cart. Chevrolet GMC Cylinder Heads. ... The cost of a New Cylinder Head from King Cylinder Heads will often be equal to or even less than a remanufactured or rebuilt cylinder head. Our nationwide distribution provides FAST DELIVERY at lower costs.317 Heads Specifications. 317 6.0L Truck Castings; Valve Size: Intake - 2.00, Exhaust - 1.55; ... However, the stock 5.3L 706 heads outperformed the 6.0L 317s. What LS engines had 243 heads? The 243 heads were utilized in the LS6 engines manufactured between 2001 and 2006. These heads are known for their exceptional power and efficiency.Oct 26, 2019 · According to the trusty flow bench, the chamber work did indeed improve the flow rate of our 706 heads, with the largest gains coming at 0.200 lift for the intake and 0.400 lift for the exhaust ...The stock "317" heads are a type of General Motors (GM) cylinder head, specifically designed for their 6.0-liter Vortec engines. They are known for their budget-friendly performance and have become popular among car enthusiasts, especially those working on GM LS engine builds. Performance of Stock "317" Heads Flow Capabilities706 heads were per the year of the truck, and some what engine they are off of. basically gen3 ls blocks. on both 5.3l and 4.8lwhere the 4.8l had flat top and 5.3 were dished. 799/243 are the same head just depends where they were made. started getting used in the higher performance engines like the l33 and then later put on the gen 4 5.3l ...Last updated on 05/06/2024. The LSA is a supercharged, Gen. 4, 6.2L, aluminum block engine. The engine specs and information listed here is for a stock LSA engine. Mechanically similar, General Motors' LS and LS-based Vortec engines wound up on almost every branch of the GM family tree: Chevy, Pontiac, GMC, Cadillac, Buick—heck, even Saab ...Compression: 9.5:1. Chamber Diameter: 3.876. Target Bore Size: 4.000. Combustion Chamber: 64 cc. Compatibility: 4.8-liter and 5.3-liter truck engines. What engine has 799 …The LS engines with 799 heads are 5.3L and 4.8L. The sophisticated architecture, cathedral-shaped port, and smaller combustion chamber work amazingly on these truck engines. The smaller combustion chamber with a higher compression ratio offers increased power output. The 799 LS heads boost horsepower up to 25 hp.The MV Motorcycles Channel provides details and specs on all your favorite models. Learn about MV motorcycle lineups at HowStuffWorks. Advertisement The MV Motorcycles Channel prov...The Jeep 4.0-liter engine uses a cast iron block and cylinder head. It comes in both an inline-6 and inline-4 cylinder version and the specifications vary, depending on the vehicle...The L9H is a 6.2L, Gen. 4, small block engine used in GM luxury trucks and SUVs between 2009 and 2013. For marketing purposes, it was also known as the Vortec 6200. The information listed here is for a stock L9H engine. Mechanically similar, General Motors' LS and LS-based Vortec engines wound up on almost every branch of the GM family tree ...Product Details. Beehive style springs. Used on LS7 cylinder heads. 1.960" installed height @ 101 lbs. pressure. 1.368" @ 310lbs. pressure.Great cylinder-head airflow has been a key enabler of the LS-Series' exceptional performance. Chevrolet Performance delivers those power-building attributes to you with a range of production-style aluminum heads — from the LS6 heads for smaller-displacement engines to LS7 style heads for 427-inch-and-larger combinations, our aluminum heads benefit from Chevrolet Performance's extensive ...933: Found on 1997 LS1 engines up to mid-September. Although 862 and 706 heads share many similarities, the primary difference is that the 706 heads are made using SPM (semi-permanent mold) while the 862 heads are not. This makes the 706 heads slightly superior. Cylinder Head.. LS 6.0L 317 Aluminum Cylinder Head CNC PortingFind CHEVROLET 4.8L/294 Cylinder Heads and g The LY6 engine is a 6.0L Gen. 4 small block engine used in GM trucks and SUVs between 2007 and 2010. For marketing purposes, it was also known as the Vortec 6000. The engine specs and information listed here is for a stock LY6 engine. Mechanically similar, General Motors' LS and LS-based Vortec engines wound up on almost every branch of the ...Professional porting and machining of combustion chambers required. No seats or guide machining. C5R rectangle-port design – requires aftermarket rectangle-port intake manifolds. Designed for big-bore (4.100" min) … Below are its specifications. 706 5.3L Truck C Application Information. VIN 8th Digit. Year. Make. Model. K. 2007-10. Chevrolet. Silverado 2500 HD, 3500 HD. GMC. Sierra 2500 HD, 3500 HD. 2007-09. Chevrolet ...In addition to the lack of EGR provisions and steam-tube clearance, the LS6 intake differs from the LS1 in its plenum volume, runner shape, and volume. Jumping from .536 to .541 liters proved much more suitable for higher-revving applications such as the new LS6, and with the revised camshaft and cylinder head specs on the later LS1s. 706 to 241 How much do 241s need to be milled to ma...
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