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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.Our fellow tech writer and dyno-flogger Richard Holdener reports a gain of roughly 15 hp with stock 5.3-liter heads on a 6.0-liter. Our 5.7-liter head test bumped the average power by 9 hp but ...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.LQ4 with 317 heads: CR = 9.41:1 (advertised CR) DCR = 8.24:1 LQ4 with 706 heads: CR = 10.42:1 DCR = 9.11:1 That cam is an excellent towing cam. It's meant for stock engines, as you can see from what happens with smaller chambers than factory. 8.2:1 DCR is about the limit for 91 octane. 93 gives a little more room, but 9.11:1 no way.The LQ4 is a 6.0L LS (Gen. 3) small block engine used in GM trucks between 1999 and 2007. For marketing purposes, it was also known as the Vortec 6000. The engine specs and information listed here is for the stock LQ4 engine. Mechanically similar, General Motors’ LS and LS-based Vortec engines wound up on almost every branch of the GM …This handy LS resource page is a good one to bookmark if you're considering an LS crate engine for a swap, or looking for a 6.2L (about 378 cubic inches) LS short block to start a project. Learn more about each LS engine displacement: * 4.8L LS Engine Guide: Block Specs, Swap Resources & Build Info. * 5.3L LS Engine Guide: Block Specs, Swap ...My friend has a pair of 862 heads in good shape for a good price. Just wanna know if I'll benifit from them at all from stock ls1 heads. I have a mild cam 218/227 long tubes and a lid plan on doing heads and a LS6 intake. I know 243's are good but didn't know if 862's are any good when they're right in front of me. They won't flow as good as ...DOES IT WORK? DIY, low-buck, Junkyard LS head surface and valve job. Save big $, just do it yourself with the Razor Blade Rebuild. Here is the answer to LS o...Steps to Torque ARP Head Bolts on LS Engines. Clean the threads of the head bolts and the tapped holes in the engine block using a suitable cleaning agent. Apply a small amount of engine oil or assembly lubricant to the threads and washer face of each head bolt. Start threading the head bolts into the engine block by hand, ensuring they are ...The LY5 engine is a 5.3L Gen. IV iron-block engine used in GM trucks and SUVs between 2007 and 2009. For marketing purposes, it was also known as the Vortec 5300. The information listed here is for a stock LY5 engine. Mechanically similar, General Motors' LS and LS-based Vortec engines wound up on almost every branch of the GM family tree ...The LS364/450 is designed with the early-style 24X crankshaft and 1X camshaft sensors, enabling easier retro-fit installation in early LS-powered vehicles, including 1998-2002 Camaros, C5 Corvettes, 1999-2006 full-size trucks and SUVs, and other LS vehicles. We offer the LS364/450 exclusively as a long-block assembly, without the induction ...706/852/862 —1999-and-up 4.8 and 5.3 truck heads: 61.15cc. 035/317/873 —1999-and-up LQ9 and LQ4 6.0 truck heads: 71.06cc. 799 —2005-and-up 4.8 and 5.3 truck heads; these are... See moreAdvertisement Kindle Paperwhite measures 6.7 inches (169 millimeters) high by 4.6 inches (117 millimeters) wide. It is a scant 0.36 inches thick (9.16 millimeters for the WiFi-only...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 …To properly install your LS Cylinder Heads, follow the steps below. This will prevent oil and coolant leaks and a loss of compression from a blown head gasket. ... LS Cylinder Head Torque Specs: Engine Family: Bolt Size: First Pass: Second Pass: Final Pass: Gen. 3 (LS1, LS6, etc.) M11 x 155.5mm: 22 ft.-lbs. 90 degrees: 90 degrees: M11 x 101mm ...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 .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.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.GM 5.3 LS Full #706-862 quantity. Add to cart. ... Features; Flow Chart; Cylinder Head Options; Technical Specs; Additional information; N/A. N/A. N/A. N/A. Additional information. Weight: 28 lbs: Related products ... GM 2.2 507 NEW FULL $ 468.00 Add to cart. Performance. Performance Cylinder Heads. PROJECT X SERIES LS XXTREME …243/799 LS CNC Ported Heads. Speed Works has teThe LM4 is a 5.3L, Gen. 3 small block engine used in GM trucks be 963 posts · Joined 2004. #1 · Mar 1, 2008. I've read the torque specs that came with my ARP Rocker arm studs and they say 55 with thread sealant (is that like thread locker?) or 70 with 30W but this does not say whether iron or aluminum heads. I really don't feel like stipping out my brand new heads with 70ft lbs of torque.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. The LQ9 is a 6.0L Gen. 3 small block engine used Buy GM 4.8L 5.3L LS REMANUFACTURED Cylinder Heads 862 Assemblies w/Rocker Arms SET OF 2 706 (Renewed): Cylinder Heads - Amazon.com FREE DELIVERY possible on eligible purchases ... * Specs : Combustion Chamber Volume: 61.15cc Intake Port Volume: 200cc Exhaust Port Volume: ...[Editor’s Note: This LY2 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 the 4.8L LY2 … Here are my specs; LS7 heads with stage 2 p

The 317 heads can flow up to 20 cfm at specific lift points more than the 706 heads. 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.MikeEC. 5 posts · Joined 1998. #4 · Nov 28, 1998. The LS6 heads for '71 are open chamber rectangle port and should carry casting number 6272990 or 14096188 if they are cast iron. They will have the words "HI PERF" cast in to them as well. The LS6 was available as a crate motor until the late '80s.Swapping over to a set of 862 LS heads unleashes the true potential of built 5.3L engines. They can support up to a 230/238 .600" camshaft, 11:1 compression, and intake/headers for over 450 wheel horsepower. On a paired with a larger cam, the 5.3L engine really wakes up with 862 heads. They enhance the entire powerband, help it rev higher ...Dyno Review - Cammed 6.2l LS, 706 Heads | 12:7:1 CompressionCheck out the rest of our channel for dyno videos, tech, videos and more. We are a shop that desi...Cylinder Heads / DSP CNC Ported GM 862 / 706 Casting. CNC ported GM 862/706 Castings, 227cc intake runner, 84cc exhaust runner, 62cc chamber. Our stage 1 will use stock valves in the 2.0/1.55 size (sold as a pair) Email a friend. SKU: wil-cnc-862-706. Manufacturer: DSP.

To help make power, the SP 5.3L also featured a set of ported 706 heads. Katech provided the porting for the 706 heads, though the porting program retained the factory valve sizes. Given our sizable cam choice, the Katech 706 heads were also treated to a dual valve spring package from Brian Tooley Racing , stock rockers, and hardened Trend ...Small Block Chevy LS Cylinder Heads by Casting Number 10215339 – LS Small Block V8 1997 346, LS1, aluminum, 68cc chambers . 12480005 ... 862 99 and up 4.8-5.3 Truck heads 706 99 and up 4.8-5.3 Truck heads 799 05 and up 4.8-5.3Truck heads ***reportedly came on a few corvette's too***…

Reader Q&A - also see RECOMMENDED ARTICLES & FAQs. After installation of the TrackMax cam, the power output of th. Possible cause: In addition to the lack of EGR provisions and steam-tube clearance, the LS6 intake diffe.