862 ls heads.

1231 posts · Joined 2007. #1 · May 12, 2013. Have a stock bottom and 5.3. The heads on it right now are 862's. I'm approaching 20psi on the engine. Would it be worth it to switch to some ported and milled .025 317 heads? Running pump gas/c16 mixed. 1980 Chevy luv truck. Stock 6.0.LSA and LS9 heads were basically an improvent on the LS3 head, but for emissions and improved driveability they have a flow vane in the intake port. These heads can be CNC ported to remove the vane …The 241 castings feature 205cc intake ports, 70cc exhaust ports, and a 2.0/1.55 valve combination. The hot factory heads would be the LS6 (243 castings), but even the stock LS1 heads can be made ...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. Reply Like.

Most importantly, 862 LS heads provide a lot of power at a cheap rate. Moreover, hundreds of thousands of old 862 heads built in 1999 are available in the exhaust port volume ranging from 4.8 to 5.3 L, often meant for truck heads. Why Casting 862 Heads Is A Great Choice? Casting 862 heads could be a great idea because of the following reasons:Run with the 317 heads, the modified 5.3L produced 448 hp at 6,800 rpm and 398 lb-ft of torque at 5,000 rpm. After installation of the 706 heads, the power …If so, the 862 has a tiny 1.9 intake valve. The 317 head has 2.0 valve and a larger intake runner cc, like the LS6. The 862 in a good bench make 220ish cfm, 317s as much as 257 or so. Just has a larger combustion chamber.

Jul 31, 2020 · 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.

862 heads being setup on a Max effort Pump Gas LS1 build. 2.00” Manley Pro Flow and OEM 1.55” valves. Mulled to true the deck surface only. Ports 215cc Intak... 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. 706/852/862 '99-up 4.8L-5.3L truck heads - 61.15cc 035 /317 '99-up LQ9 and LQ4 6.0L truck heads - 71.06cc 799 '05-up 4.8L-5.3L truck heads (these are basically …Feb 13, 2020 · The factory 706 head casting may be the best LS performance value going. ... The 706 Vortec heads are even slightly superior to the commonly found 862 heads. The reason is that the 706 heads are ... The Chevy 706 LS Heads are superior to the most popular 862 heads, sand cast, and produced using semi-permanent molds (SPM). Although the SPM approach is more reliable, porting 862 heads eliminates their distinction. However, porting is expensive; therefore, casting 706 heads in stock form is the best option. ...

The 2007 year had three 5.3L motors offered. The 2007 Classic (still a NBS) had the 5.3L with either the L59 (flexfuel version) or the LM7. The 862/706s are on the 99 and up 4.8/5.3L motors. The only difference about the L59 motor was the injectors. 2005 and up motors had the factory electric fans and electric TB.

4 Dec 2019 ... 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 ...

Are you looking for a rental property near you? Finding the right place can be a daunting task, but with the right resources and information, you can get a head start on your searc...GM LM4 / LM7 / LR4 4.8L 5.3L Cylinder Heads PAIR # 862 w/ rocker arms OEM. $649.99. Free shipping. Check the item description to confirm this fits your vehicle. Hover to zoom.These particular heads are 862 castings, replacing my 706 heads on my LM7.Find RHS Pro Action Chevrolet LS Cathedral Port Cylinder Heads and get Free Shipping on Orders Over $109 at Summit Racing! RHS Pro Action cathedral port aluminum cylinder heads are premium LS1 replacement heads for great power on any performance or stock engine build. They feature factory-correct intake manifold alignment slots—ensuring that …$149.99. custardcoresupply (2,999) 99.1% Buy It Now. +$25.00 shipping. 5 watchers. 862 LS2 LS1 Gen III Gen Cylinder Head W/ Valves & Springs 5.3 / 4.8 LS1. GOOD USED …

NEW ONLINE STORE!!!https://lsnasty.comhttps://lsnasty.comFollow The LS NastyChannel: http://youtube.com/lsnasty @ls.nastyLS Nasty700 N 13th StErwin NC 28339S...Jun 22, 2021 · The LS3 was run with a Holley HP management system and FAST injectors. With stock heads, the modified LS3 combination produced 552 hp at 6,400 rpm and 513 ft-lbs of torque at 5,000 rpm. After installation of the TFS Gen X 255 heads, the power numbers jumped to 571 hp at 6,500 rpm and 525 ft-lbs of torque at 5,200 rpm. Find CHEVROLET 4.8L/294 Cylinder Heads and get Free Shipping on Orders Over $109 at Summit Racing! Free Mount & Balance for Many Wheel & Tire Packages - Contact us for Details! ... 1997-03 GM Gen.3 LS Head Bolts, Zinc Plated, Steel, Hex, Torque To Yield, Kit. Part Number: SUM-910210. 3.55 out of 5 stars. Estimated Ship Date: …Chevy Silverado 5.3l 862 Vortec Ls Cylinder Heads Matching Pair 1999-2007 Oem $229.99 View Item Details 1 5.3 Gm Ls Chevy Cylinder Head 862 99-2006 Silverado Suburban Escalade Core $119.99 View Item Details Genuine Gm Chevrolet Vortec Ls Cylinder Head Lm4lm7 706862 4.8l5.3l $165.00 View Item Details ...Aug 11, 2023 · GM LM4 / LM7 / LR4 4.8L 5.3L Cylinder Heads PAIR # 862 w/ rocker arms OEM. $649.99. Free shipping. Check the item description to confirm this fits your vehicle. Hover to zoom. Heads-up displays (transparent displays that let drivers see data without looking down) are built-in on some modern luxury cars, but if you're not lucky enough to have one, here's ...Sep 1, 2017 · 373/873 LQ4 iron heads - 71.06cc. 706/852/862 '99-up 4.8L-5.3L truck heads - 61.15cc ... L92 heads (often referred to as LS3 heads) moved to a rectangular port and are some of the best LS heads ...

Chevy Silverado 5.3l 862 Vortec Ls Cylinder Heads Matching Pair 1999-2007 Oem $229.99 View Item Details 1 5.3 Gm Ls Chevy Cylinder Head 862 99-2006 Silverado Suburban Escalade Core $119.99 View Item Details Genuine Gm Chevrolet Vortec Ls Cylinder Head Lm4lm7 706862 4.8l5.3l $165.00 View Item Details ...

You could also mill the heads. It takes .007" milling to remove 1cc from an LS1 head. If you have a stock 66cc chamber and you want to get down to 63cc chamber, 66-63 = 3 (you'll have to remove 3cc's).007 x 3 = .021" So to get your 66cc chambers down to 63cc you'd have to mill .021"Advertisement Some say the power of aphrodisiacs is all in our heads. In other words, it's a placebo effect -- if we think something is going to put us in the mood for love, we'll ...Learn about the history, design, and performance of different types of LS cathedral port cylinder heads, from factory to aftermarket. Find out the flow numbers, …LET'S TALK TECH, ANYONE EVER SEE A SET OF STOCK 243 HEADS FLOW 270+ CFM? WE COMPARED 243 HEADS TO 862 HEADS, PORTED, CHAMBER WORK & BIG …GM Chevy 5.3 4.8 6.0 #862 Vortec LS Cylinder heads Truck SUV GEN 3 OEM (NO CORE) Opens in a new window or tab. Remanufactured. $274.99. jerry194 (2,684) 99.3%. or Best Offer +$95.15 shipping. 1 GM CHEVY 4.8 5.3 OHV LS4 SILVERADO TAHOE CYLINDER HEAD CAST# 706 & 862 99-05. Opens in a new window or tab.French fuel workers entered a 15th day of strike action on Wednesday, leaving more than a quarter of gas stations without at least one type of fuel. Americans heading to France thi...LS 706/862 BARE. Additional information. Weight: 28 lbs: Related products. GM 350 E NEW BARE $ 363.00 Add to cart. GM 4.3 VTECH NEW FULL ... GM 2.2 146 NEW FULL $ 468.00 Add to cart. Performance. Performance Cylinder Heads. PROJECT X SERIES LS XXTREME SERIES SHOCKER SERIES MAXX SERIES SERIES ONE. Diesel. DIESEL. …OEM GM 862 cylinder heads removed & remanufactured at 32k miles. • Any broken exhaust studs are removed, and all threaded holes are checked, none are stripped. LS LS1 LS2 LS3 LS6 LS7 LSX 862 CYLINDER HEADS SET 4.8 5.3 5.7 6.0 6.2 VORTEC | …I’ve had some emails and messages, on the SierraC3TV Facebook page, making arguments against using 706 heads on my 6.0. In this episode, I give my reasons wh...

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 ...

GM LM4 / LM7 / LR4 4.8L 5.3L Cylinder Heads PAIR # 862 w/ rocker arms OEM. $649.99. Free shipping. Check the item description to confirm this fits your vehicle. Hover to zoom.

Chevy Silverado 5.3l 862 Vortec Ls Cylinder Heads Matching Pair 1999-2007 Oem $229.99 View Item Details 1 5.3 Gm Ls Chevy Cylinder Head 862 99-2006 Silverado Suburban Escalade Core $119.99 View Item Details Genuine Gm Chevrolet Vortec Ls Cylinder Head Lm4lm7 706862 4.8l5.3l $165.00 View Item Details ...MLS Head Gasket for Notched 853, 862, 806 LS Heads Fits 1997-2013 4.8L 5.3L 5.7L LS-Based V8 Engines These gaskets are specifically designed for the 2001-earlier LS1, 4.8L truck and 5.3L truck heads that have a "notch" in the cylinder head deck, preventing them from sealing with a conventional MLS gasket. Can also be used on the …Richard Holdener. 291K subscribers. Subscribed. 2.7K. 172K views 4 years ago WESTECH PERFORMANCE GROUP. 706 5.3L HEADS vs 241, 799/243 vs 317s. …Learn about the history, design, and performance of different types of LS cathedral port cylinder heads, from factory to aftermarket. Find out the flow numbers, casting numbers, and dyno tests of various LS heads, including the 862 casting for the 5.3-liter LS1.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 ...If you've ever needed to core a head of iceberg lettuce, either because you need to chop it up or you just want it easier to separate, there's an easier way than trying to carve ou...You could also mill the heads. It takes .007" milling to remove 1cc from an LS1 head. If you have a stock 66cc chamber and you want to get down to 63cc chamber, 66-63 = 3 (you'll have to remove 3cc's).007 x 3 = .021" So to get your 66cc chambers down to 63cc you'd have to mill .021"That will get you 11.25:1 or more on a stock LS6 (243) chamber. FWIW actually the most economical upgrade for cheap heads that run is a good valve job on a set of 243 castings. The heads out of the box from GM move 250-255cfm @ .600" lift, with a valve job they can move 285cfm @ .600" lift. Now this is not something your average …Learn about the history, design, and performance of different types of LS cathedral port cylinder heads, from factory to aftermarket. Find out the flow numbers, casting numbers, and dyno tests of various LS heads, including the 862 casting for the 5.3-liter LS1.

[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 …5.3 truck heads (casting #862 and 706) are also a very popular base casting for porting/modifying, due to their even smaller (61.15cc) chamber size which raises compression when used on a LS1/6 engine.. 6.0 truck heads (casting #317) are popular heads with the forced induction crowd, as they are basically the same as 243 heads, but …He put 862 heads on his LS1 to "bump" up his compression. Last edited by jrbonds; 07-01-2013 at 07:54 AM. Posted from Android App. 07-01-2013, 08:17 AM #2. ls1camino. View Profile View Forum Posts View Blog Entries Sold: LS1 '85 El Camino Join Date Dec 2005 Location Laurel, Maryland Posts 4,975 2000 Grand Prix GTP ...Find CHEVROLET 4.8L/294 Cylinder Heads and get Free Shipping on Orders Over $109 at Summit Racing! Free Mount & Balance for Many Wheel & Tire Packages - Contact us for Details! ... 1997-03 GM Gen.3 LS Head Bolts, Zinc Plated, Steel, Hex, Torque To Yield, Kit. Part Number: SUM-910210. 3.55 out of 5 stars. Estimated Ship Date: …Instagram:https://instagram. british bulldog for sale houstoncake donut caloriesgreensboro consignment sales2008 chevy impala lug nut torque specs Crafted from high-quality aluminum, these 5.3 aluminum heads are both durable and lightweight. Whether you're into 5.3 Vortec heads or 706 ls heads for sale, our product fits the bill. With a year range spanning 99-06, these heads are compatible with a 5.3L - 327ci - V8 engine, making them versatile for various Chevy models. how far is 1500 ftp0300 chevy tahoe 2007 Head gasket repair can be an expensive, but necessary repair for your vehicle. Knowing the average cost of a head gasket repair can help you budget and plan for this important main... gunsmoke season 16 episode 2 the 862's are off the early 4.8-5.3 motors after about 99 I believe. I also believe texas speed used to have the 2.05 valve opton on those heads at one time. I run 2.04 valves on mine. 12-30-2010, 08:54 AM #7. 1badmonza.The head casting numbers are typically 706 or 862. To verify that Castech heads are installed and cracked: Remove the valve cover and valve rockers. Locate the Castech mark under the valve rockers. Small amounts of orange DexCool may be visible in the oil drain wells or around bolt heads (as shown in Figure 3). ...Infographic describing signs you need to watch for if you hit your head or have a hard impact during action sports. Please visit the truly inspirational crew at The Crash Reel for ...