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 CapabilitiesWe did the research on the specs, reviews, and materials to find you the best full mattress possible. We include products we think are useful for our readers. If you buy through li...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 …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...Do not do that. 706's have 61.5 cc chambers and 243's have 64.5 cc chambers so you will lose compression unless you mill down the 243's. 799 and 243 heads are generally accepted as 100% identical. The 243 could come on a truck, or a z06 with lightweight valves, which are also longer than all the other standard LS valves.also like skunk said they have less ptv vs a cath port..about .050 less valve drop on the intake thats why youll see a ly6 (ieon block l92)cam combo around 7.5-8ivo vs a cath youll see cams in the 11.0ivo range..ls3 being all alum can go .5 more do to the extra growth of the block..this isnt a exact number for ivo because different lobes an spring pressure also come into play.but it gives you ...Chevrolet LS Gen. 3, Aluminum Block Torque Specs. Views: The following specs apply to RPO codes: LS1; LS6; LM4; L33 **Click the blue links in the table for more detailed information** Fastener Type: ... Cylinder Head Bolts: M11 x 2.0 x 155.5: 22 ft.-lbs. 90 degrees: 90 degrees: M11 x 2.0 x 101.0: 50 degrees: M8 x 1.25 x 46.0--22 ft.-lbs. Rocker ...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 ...From how I understand it to work...and I'm no expert... 317 heads are designed for a 4.000" bore motor. Your LS1 is a 3.900" bore motor. Therefore, you'll need a thicker gasket on your heads. Stock heads are 67cc and you are going to a 72cc. This is going to drop your stock 10.5:1 compression down some.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.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.Precision Race Components Customer-Supplied 4.8L/5.3L/LS1/LS2/LS6 Cylinder Heads Fully CNC Ported & Assembled With Choice of Your Stock or Stainless Steel 2.02" Intake Valves, 1.575" Exhaust Valves, & Optional TSP Dual Valve Spring Kit with PAC Valve Springs & Titanium Retainers. Kit Also Includes TSP Hardened Pushrods & Your Choice Of Camshaft!The torque specifications for Chevrolet 350 cubic inch V8 head bolts are 65 foot-pounds per bolt if securing the stock cast iron head. Aftermarket aluminium heads have unique torqu...On the other hand, the 706 heads come with 1.89" intake valves and 1.55" exhaust, respectively. The 243 heads come with 64.5cc chambers, while the 706 heads feature 61.5cc chambers. Although the 243 heads appear to be more excellent than the 706 heads, it may not be a nice combo with a tiny bore engine due to its larger intake valve.Has anyone tried to put a LS7 head on a 6.2l (LS3) block. 4.07 bore. Took a few measurements. On a 4.062 bore ... LS Fest True Street 2018 True St. winner 1/4 PB *9.06 @ 147 1/8 PB *5.75 @ 120. ... GM website gives specs for all the different COPO motors, only the supercharged motors say LS7 head on a 4.065 bore the NA 4.065 motors say LS3. ...Stock out-of-the-box Vortec heads have approx. 480HP potential naturally-aspirated. Fully race-ported flowing 275 cfm @ 28" water with 2.055/1.60 valves, potential is approx. 580 HP. There are reports of some shops getting close to 300 cfm out of these heads in fully-ported form.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 GMPP LSX cylinder head is a six bolt head that can be used on C6 ZO6 Corvette LS7 blocks or the GMPP LSX cast iron block. Flow number and performance will be the same as the LS7 CNC ported cylinder heads that we use in our 630 horsepower & 660 horsepower C6 ZO6 Corvette engine packages. LPE CNC Ported LS7 Flow Specs Intake 400 Cfm, The port ...Aug 1, 2014. #5. I've got one of those Max Ellery repair manuals here's what it says might help. Bolts under rocker cover are M11. Bolts Not under rocker cover are M8. Cylinder Head Bolt Torque: Step 1 : All bolts M11 and M8: 30Nm. Step 2 : M11 bolts a further 90 degree turn. Step 3 : M11 bolts 1-8 a further 90 degree turn.Jul 16, 2007 · 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 with larger ...Avoiding 706 castech heads. Hey guys, I just joined this forum because I am looking to buy a silverado/sierra soon but still have a couple questions. Right now I'v got a 2004 5.3 tahoe with leaking castech 706 heads. Iv decided to trade it and and I'm trying to avoid having the same problem again with my new truck.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.Summit Racing™ Precision Cast Cylinder Head SUM-162LS210CATH. Chevy LS Cylinder head, 210cc Cathedral port Intake Runner, 64cc Chamber, 2.02 Intake Valve 1.6 Exhaust Valve, 3.898+ bore sizes, Max .600 Lift Ea. Part Number: SUM-162LS210CATH. ( 1 ) Estimated Ship Date: Today.Cylinder Head Bolts (All M11) (2nd pass in Seq.) = 90 degrees. Cylinder Head Bolts (All M11 EXLUDING Med. Length F/R Bolts) (final pass in Seq.) = 90 degrees. Cylinder Head Bolts (M11 F/R Med. length) (final pass in Seq.) = 50 degrees. Then I found a thread on Here that says 90 degrees first pass the 70 degres last pass. Subtle differences.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.Today I installed and torqued down my LS1 cinder heads for my ls swapped is300 projectChevrolet Orange Engine Painthttps://amzn.to/3hIh21DICT Billet Exhaust ...Can anyone tell what size engine I purchased from these castings? 12567392 stamped in the engine block and 706 stamped in the heads. ... 1987 jeep wrangler, 1999 LS 1, 4l60 231j transfercase, dana 30 frontend ford 8.8 rearend 3:73 gear ratio. sandersons shortie headers, 2.25 inch exhaust into 3 inch flowmaster muffler. ...We did the research on the specs, reviews, and materials to find you the best full mattress possible. We include products we think are useful for our readers. If you buy through li...But, the combustion chambers are bigger than the 5.3 heads. You need to mill the 243 heads about .020" to keep the compression ratio the same. 2004 torrid red with red interior A4 GTO (1 of 499) TR-230/236 cam/TEA ported Trick Flow 215 heads/4" CAI/100mm MAF/ported FAST 90/Kooks/Magnaflow.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 ...get those projects done! should you run 706 heads on your 6.0l for more torque? what about the change in compression and detonation? what if i have to retard...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 …Casting # 706,862. 71cc chamber; .3154 guide ID. Valve head diameter 1.890-1.920 / 1.550-1.580. (Only 1 Remaining) ENGINETECH EHC293. $357.89: $0.00 ... Complete with Valves and Springs Info . Fits Left; Casting # 706, 862 or Right; Casting # 706, 862. CYLINDER HEAD EXPRESS GM5300. Out of Stock: Add to Cart. ENGINETECH CH1059R Remanufactured ...Description of the porting process, tools, percentages and general how to port cylinder heads.The minimum recommended clearance is 0.035-inch, so you should be able to deck most blocks 0.010-inch without a problem, but be sure to check the piston protrusion before you install the heads. If ...Head Bolt Kit Chevrolet LS Gen III LS Series small block (2003 & earlier), two lengths, 8740, hex Kit #: 134-3609 . Specifications; Socket Size(s) 13mm hex, 10mm hex: Jobber Price*: $289.95. Instructions for Kits with Standard Flat Washers: Instructions for Kits with ...Here are my specs; LS7 heads with stage 2 porting and milling by WCCH, OEM rockers, OEM Ti intake valve (78 grams) Ferrea hollow stem exhaust valve (90 grams), custom cam with comp LXL lobes 222/246 .638 .652 116+1, 13.3:1 SCR, rev limiter at 7300 rpm. The LXL lobes are designed for a 1.8 rocker with a softer seat landing is the reason I chose ...Cylinder Head Comparison Sheet GM LS GenX® Series Cylinder Heads for GM LS Product Name Intake Runner Volume Combustion Chamber Volume Valve Sizes Port Flow @ .600" Valve Lift Use GenX 205 4.8L/5.3L/5.7L (Vortec) 205cc CNC Competition Ported, Cathedral Port 58cc CNC-profiled 2.000" intake; 1.575" exhaust 284 cfm intake; 228cfm exhaustThough the debate of 317 vs. 706 heads seems to never end, I can't deny that 317s are good for turbocharged engines. If the 706, 243, or the later 799 is the go-to head for any engine, the 317 is just right behind. ... According to LS 317 head specs and after my testing, I consider it an excellent option. They provide greater volumes of ...Oct 3, 2019 · 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.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.1996 Camaro Z28 forged 385 A4-, match ported heads and manifold with 3 angle valve job, 52mm custom ported tb, cc503 cam, 1.6 ratio rockers, dual spring valves, lt1 edit, pacesetter long tubes, 3.73 gears, t/a push button, tb bypass, 2.5" true dual exhaust with H, 3k TC, ls1 home made intake, and going in a simple diet1.4K. 100K views 4 years ago WESTECH PERFORMANCE GROUP. Previously, we compared the stock 706/862 heads to the 799/243 heads on a cammed 5.3L test …For a good idle and low end, you'll often see the 5.3L truck cams in the 204-215 @ .050 range if it's still a daily driver. If the engine is being swapped into a lightweight car with deep gears, converter, etc., the LH6 responds well to bigger cams. Intake Duration (@ 0.050 in.) Horsepower at the wheels after bolt-ons. Idle Quality.Jun 28, 2018 ... THE ULTIMATE STOCK LS CYLINDER HEAD TEST! ... Porting LS 862/706 how much do they flow? ... WHICH IS BETTER-CNC PORTED STOCK LS HEADS OR AFTER ...706/ 862 CNC Cylinder Head Porting Service. $ 1,098.99. Add to cart. Category: Chevrolet. Description. Reviews (0) Our 706 & 862 ported heads include: Our in house CNC port. PCD surfaced to your desired chamber size.The stock LS1/LS6 series engines have rocker arm ratios ranging from 1.7:1 up to 2.5:1 depending on their application and camshaft profile, with an ideal range being between 1.8:1 and 2.2:1 for most common street applications. ... The 2009 5.3 rocker arm torque specs for the cylinder head bolts are 18 lb-ft and then an additional 90 degrees of ...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 ...Chevrolet LS Gen. 3, Aluminum Block Torque Specs. Views: The following specs apply to RPO codes: LS1; LS6; LM4; L33 **Click the blue links in the table for more detailed information** Fastener Type: ... Cylinder Head Bolts: M11 x 2.0 x 155.5: 22 ft.-lbs. 90 degrees: 90 degrees: M11 x 2.0 x 101.0: 50 degrees: M8 x 1.25 x 46.0--22 ft.-lbs. Rocker ...The LQ9 is a 6.0L Gen. 3 small block engine used in GM trucks between 2002 and 2007. For marketing purposes, it was also known as the Vortec HO 6000 or VortecMAX. The information listed here is for the stock engine. Mechanically similar, General Motors’ LS and LS-based Vortec engines wound up on almost every branch of …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 SERIES SHOCKER ...ProMaxx Performance. 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.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 ...Thank you Headflowinc for pointing out the correct Mahle head gaskets I needed for this build. I could have used the others I bought but I fear the larger fi...If you fall into that category, listen carefully. The most important part of your cylinder head is, as per Fig 6-3 and Fig 6-4, the area 1 inch before the valve seat to 1/2 inch after it on the intake and vice versa on the exhaust. Be aware that what you think is needed may not be what is wanted.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.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 ...The factory 706 head casting may be the best LS performance value going. Here's why. News. Reviews. Buyer's Guide ... Vital Specs for 317, 873, and 035 Castings. 2001+ LQ4 and LQ9 6.0-liter truck/SUV;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 jumped to 468 hp at 6,800 rpm and 413 lb ...Product Details. Lingenfelter offers an excellent flowing CNC ported version of the second design GM LS1 aluminum cylinder head used on the 1999-2004 LS1 Corvette and the 1999-2002 Camaro / Firebird. These second generation LS1 cylinder heads were also called center bolt LS1 cylinder heads because of the style of valve cover and head casting ...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 …The L76 is a 6.0L, Gen. 4, aluminum small block engine used in both GM cars and trucks from 2007 to 2009. This article is dedicated specifically to the truck and SUV version of the L76 engine. (NOTE: Don't confuse the engine specs here with the L-76 5.4L small block which could be found in the C2 Sting Ray Corvette in 1964.)Nov 2, 2017 · The LS3 is a Gen. 4, 6.2L small block engine used in GM performance cars between 2009 and 2017. The engine specs and information listed here is for a stock LS3 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 ...Overview About 823 LS Heads. Once you need to supply decent power to your sports car with an LS engine and push its performance to a new height, the 823 LS heads – also known as the L92 heads – are an ideal option. This model was first introduced in 2008, and it is set up in the Corvette C6, which belongs to the LS3 of the General Motors ...431 posts · Joined 2019. #9 · Jan 5, 2021. 706 heads out perform all others on a 4.8. Throughout the entire normal rpm range. It's not all just about flow. Those larger flow numbers from other heads are misleading. Yes they flow more than 706 however, only beyond 6000rpm. 706 heads are the best for the 4.8.Despite an increase in chamber size, the factory 317 heads flow better than the smaller 706 (and comparable) heads usually found on the 4.8L/5.3L twins. Run in a similar fashion on the engine dyno, a stock 6.0L will produce a solid 70 hp more than a 4.8L (404 vs 335 hp in our last test), and 45-50 hp more than the 5.3L (404 vs 352 hp in our …Oct 4, 2018 · The L59 engine is a 5.3L Gen. III iron-block engine used in GM trucks and SUVs between 2002 and 2007. It is essentially the flex-fuel version of the LM7 . For marketing purposes, it was also known as the Vortec 5300. The engine specs and information listed here is for a stock L59 engine. Mechanically similar, General Motors’ LS and LS-based ...[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 …LM7 5.3L Vortec 5300 Engine Specs: Performance, Bore & Stroke, Cylinder Heads, Cam Specs & More. Posted 03/01/18 by OnAllCylinders Staff. Last updated on …Mar 15, 2024 · 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.The large, raised runners and 12-degree valve angle enable substantial flow that supports large cubic inches. And the large valves necessitate a 4.125-inch or larger …FULL RESULTS-FACTORY LS HEAD SHOOTOUT, 6.0L WHO WINS? Check out this comparison between the 706, 799, LY6 and TFS 225 heads on a cammed 6.0L? What is the bes...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.706 to 241 How much do 241s need to be milled to maintain the same compression as the stock 706 heads? ... Pittsburgh, PA Posts 3,581. you wont gain anything but a loss in wallet. the 5.3 heads flow same as the stock ls1 heads do 2002 Lightning - GT headed 5.5Litre w/ Twin 7665s 2002 Silverado - 427Lsx w/ Twin gt4202s 2010 Silverado crewcab Z71 ...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 …Remove the 3 and 10mm bolts in the engine cover mount and remove the mount. Remove the 10mm nut on the wire bundle atop the engine, and flex the wire bundle away as needed. Remove the vacuum pipe by pulling it off the two nozzles. For 1999 to 2002 Silverados, the PCV valve is located in the valve cover end of the pipe.Could someone please tell me the torque specs on a d282 for head bolts and valves are set at loaned my book buddy cant find it! Link to comment Share on other sites. More sharing options... lorenzo. Posted August …Trick Flow® GenX® 205 Cylinder Heads for GM LS 4.8L/5.3L/5.7L (Vortec) TFS-3051B001-C00. Cylinder Head, GenX® 205, Competition Ported, Bare, 58cc CNC Chambers, GM LS Vortec, Each. Part Number: TFS-3051B001-C00. Estimated Ship Date: Aug 14, 2024 if ordered today.1138 posts · Joined 2009. #1 · Nov 27, 2017. I have a matching pair of 1970 LS6 heads that I removed from my wrecked LS6 in 1974. The part # is 3964291 and they both have a C 6 70 date code. My brother had these until I got them back after he passed away.Long-Block Parts Total (Includes Short-Block Parts): $6,904. Machine Work Total: $925. Total Additional Parts To Complete "Crate Engine": $2,524. Tools & Miscellaneous Total: $371. Before getting ...The first thing you’ll notice about the LG Velvet phone is how it strays from the electronic giant’s typical business model. Namely, every LG phone before this one has launched as ...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 LS1 heads have 67cc chambers with 2.00/1.55-inch valves. Other heads you'll run into are 852 and 706 castings, which have smaller 61cc chambers and 1.89/1.55-inch valves.The 241 heads were used on 5.7L LS1 applications and are considered by many to be just a minor step up in performance from the 706. In terms of peak flow, the 241 heads offered 242 cfm at 0.700 ...The LH6 engine is a 5.3L Gen. IV aluminum engine that replaced the LM4 in 2005. It was the first Gen. IV LS truck engine and offered Active Fuel Management (AFM). The LH6 was available in mid-size SUVs until 2009, and in GM pickups from 2007-09. For marketing purposes, it was also known as the Vortec 5300.Record the amount of water added and the mass of the soil-filled mold. 5.1.3 Remove the material from the mold and cut vertically through the centre, taking a representative portion to determine and record the moisture content according to the Method of Determination of Moisture Content of Soils (MTO Method of LS-701).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...From how I understand it to work...and I'm no expert... 317 heads are designed for a 4.000" bore motor. Your LS1 is a 3.900" bore motor. Therefore, you'll need a thicker gasket on your heads. Stock heads are 67cc and you are going to a 72cc. This is going to drop your stock 10.5:1 compression down some.Each CNC ported cylinder head will have the exact same port and chamber configuration as the original master used to develop the CNC program. ACCOUNT CONTACT MY CART. EVENTS ; Gift Cards & e-Gift Certificates ; Lingenfelter ... Lingenfelter GT11 LS Series Camshaft 371/215 379 231 R118. $424.95. GM LS1 LS6 Head Gasket & Bolt Kit 1997 03 …The factory-built motor dished out about 430 horsepower right out of the gate, and the cylinder heads play no small role in that impressive output. The LS3 heads hit the flow bench. The LS3’s 319-T5 …706/ 862 CNC Cylinder Head Porting Service. $ 1,098.99. Add to cart. Category: Chevrolet. Description. Reviews (0) Our 706 & 862 ported heads include: Our in house CNC port. PCD surfaced to your desired chamber size.This is a Rebuilt OE Stock LS 4.8L , 5.3L Cylinder Head Assembly. Part # : 706 , 862 also, The minimum recommended clearance is 0.035-inch, so you should be able to deck most blocks 0.010-inch witho, Add 100+ horsepower to your GM LS or Gen 5 LT engine with a Texas Speed & Performance cylinder heads and cams, Find AFR 210cc LS1 Enforcer Cylinder Heads and get Free Shipping on Orders Over $109 at Summit R, CNC Ported LS 5.3L 706 / 862 Cylinder Heads, Customer Suppli, Quote: Originally Posted by lil john. True Tuskyz, als, If the 706s are useable as-is, just run those. Then when you add the turbo, bolt on the 317s. Also consider the SUM-, The L59 engine is a 5.3L Gen. III iron-block engine used in GM tru, The L92 heads are another excellent choice. Originally found, 706 5.3L HEADS vs 241, 799/243 vs 317s. WHICH HEADMAKES MOR, Ministry of Transportation, Ontario Test Method LS-, These heads can be CNC ported to remove the vane and improv, LM7 5.3L Vortec 5300 Engine Specs: Performance, Bore &a, Casting # 706,862. 71cc chamber; .3154 guide ID. Valve head, L84 5.3L EcoTec3 Engine Specs: Performance, Bore & Strok, Head: Gen III Years: Vehicle: 4.8L: LR4: LR4 Upgrade Guide: LR4 Engin, To properly install your LS Cylinder Heads, follow t, Jun 2011. Location. Clarksville, TN. Posts. 198. 862 .