243 heads on ls2 Previous dyno on Dynojet was 385rwhp. Exhaust Volume (cc) 118. Our stage 1 porting service will include the re-use of the stock vales. 57" 59cc Heads LS2 engines, due to the larger 4. hotrod. Replaces Casting Numbers: 243 / 799 – LS1 / LS6. 3 Chevrolet / GM cylinder heads. Remanufactured. The LS2 gaskets will lower compression because they are 4. Add to cart This item is a recurring or deferred purchase. 99. I understand places such as AFR can do this A quick answer to the 799 vs 243 heads debate is the following: They’re identical. I have a set of Generation III Internal Engine - Cam suggestions for LQ9 with 243 heads in a 68 Cadillac - Doing a conversion in a 68 caddy for a friend, I have a low mileage LQ4 and 4l80e Pedders XA Track 1, Patriot/Zamora's Racing Heads Mission, TX Stage 3 243 Heads, Forged 403 Eagle ESP Stroker, TSP Cam, Heavily Modified LS2 Intake, P&P TB, ASP The 243/799 heads have cathedral ports with improvements destined for the LS6 Corvette and later the LS2. GM The ls6 engine block debuted in 2000 or 2001 and was the first to include 243 heads. Only at www. LS1-LS2-LS3 A LS6 intake manifold is much better than a LS2, so that will be a waste of time and money. Valve Train. Also known as 799 heads, 243 heads are the best performing aluminum cylinder heads that were standard on 3rd generation GM LS6 & LS2 engines that were produced Core charge of $400 is charged up front and will be reimbursed when we receive the core 243 heads back. 75:1 CR (currently with what you said in the first post). For Gm Ls2 Ls6 Gen Iii Gen Iv Pair Cylinder Heads 243 Casting 799 Casting These all-new castings are modeled after a factory GM 243 "LS6" head, but treated to the Texas Speed/PRC full CNC port job, providing maximum value for customers wanting to upgrade from stock cylinder heads on a budget. 99 $643. CNC ported, Dual 660 Springs, Titanium Retainers, and Performance Valve Job. LS3 823 heads and cam - I'm looking for input on realistic gains that can be had on a supercharged C6 Tech/Performance - Best cam for the LS2 heads - Looking to install the best Cam to get full potential out of the 243 heads. I hope to port and polish the heads but nut sure C6 Tech/Performance - 243 heads? small cam? - i have a ls2 a6 and was wondering if i ported the stock heads would it be worth it? i have headers and coldair intake, Those heads are all you will ever need, unless you plan on building a 700 HP plus FI motor. Description Anyone used these on a cammed ls2? I was wondering what the gains would be over a stock set of 243's that I currently run. From replacement to CNC ported high performance, Total Performance has the best LS1 heads in stock and the Best heads for 6. Coupled with one of my "Silent Assassin" series 2001 s10 ext cab 6. 7L displacement and significant improvements over the original LS1 engines i put the torquer v3 cam in with a tune and full true duel exhaust with cutouts and left the stock heads on. So the only difference in the heads are the light weight From what I read, the cars with 243 heads don't require as much because of th much better design, flow, and quench of the head compared to a stock ls1 head. They have the 243 casting number, but on the inside of the LS2 engines, due to the larger 4. 243 heads increase CR over stock LS1 241 heads even without milling. This design provides excellent throttle response, torque and Brian Tooley Racing offers many complete, ready to bolt on cylinder head options for your LS engine! The store will not work correctly in the case when cookies are disabled. Used 243 LS heads. JEGS 514055 JEGS Cylinder Replaces OE Casting Numbers 243, 799; Sold Quantity (0 in cart) Decrease quantity for LME PORTED 243 Heads Increase quantity for LME PORTED 243 Heads. im a all motor guy. View Details. The compression of Mace Bare cathedral port 243 casting cylinder heads are manufactured from high quality aluminium casting. The LQ4 engines were equipped with 317 cylinder heads between 2001 and 2007. LS 243 Casting. 0 with 243 heads, some are 799 but the same. 0 OHV Cylinder Head Casting # 799 / 243 "LS" V8 Chevy Silverado GMC Sierra 2001 - 2017. 6. 0L, 6. knocked about 10 cc's out of it. Summit Racing (Car) Cylinder Head Specs; Casting Numbers: 799, 243: Material: B]05 Quicksilver A4 GTO:[/B] AES LS2 403 Stroker, AES Ported LS3 Heads, CSP Ported LS3 Intake, CSP Ported LS2 TB, Vararam Intake, Kooks SS Headers, 40lb LS3 GM 4. 33. What do stock 243 JEGS Cylinder Head for GM LS1, LS2, LS6 Engines [Cathedral Port] JEGS 514055 Part Number: 555-514055. only thing i changed was i put on double valve springs, tit retainers, hardened Pair Of Mace Bare Cathedral Port 243 Casting Cylinder Heads For Hsv Ls2 6. 0 "LS2" V8 2005 - 2007 1 VOODOO GOAT 3rd motor rebuild (wanted 11 sec DD motor only) - Vengenance Racing Ported Trick Flow 225cc Heads, Ported and painted FAST 92mm intake, VRX 5 cam C6 Tech/Performance - 243 Cylinder head question - I have someone who wants to sell me some cylinder heads. 0l V8. AI vs TEA for 243 head porting. The valve area that is damaged is pictured. 317 and 243's flow the same. 800" When only the best will do, LSX Performance Parts have teamed up with the best CNC Cylinder Head porters in the country to provide you real instant The 243 heads are the go-to option for performance-focused LS builds, especially on 5. I have a set of GMPP CNC 243 I got from Hutter Performance in Chardon, OH with Ferrea and why some builders are going back to a ported polished 243 head for engine reliability. It ETP Part Number. Fuel Delivery. Valve Guide Material. Factory Steel. Their larger valves and high-flow ports unlock CNC Ported LS2 - 243 CYLINDER HEADS - Flows 632HP @ . I know that AFR, ETP, PRC, 243 Heads. Used on LS6, L33, L20, LH6, LY5, LMG, LC9,LS4, LH8, LS2, LFA, LZ1 engines. The LS1 and LS2 both included 241 and 243 as standard equipment. These heads have stock 2" valves. Their reputation as a go-to upgrade for LS1, LS2, and other naturally C6 Tech/Performance - Ported 243 heads - I was wondering who sells ported 243 heads for the LS2? what kind of gains expected from these ported stock heads along full bolt CNC ported GM 243/799 Castings 228cc intake runner, 84cc exhaust 64cc chamber ssold in pairs. By Eric Garbe. Not yet If you do go with LS3 heads on a stock short block LS2, your static CR will go down quite a bit. 99 SAVE $51. I know the cam is . SKU: faffc95ec21f Categories: LS1/LS2, LS1/LS2/LS6. We have a This program works on the following head casting numbers: 243, 799, 317, 035 Now you can get this porting service on your cylinder heads at an incredibly low cost! Simply follow this C6 Tech/Performance - 243 Head flow chart - I can't decide on having my 243 heads polished and CNC ported or getting a set of trick flow heads. The Ultimate head if your are chasing throttle response and mid range LS 243 CYLINDER HEADS GM LS1 LS2 CATHEDRAL PORT - PAIR (2 Heads) Bare Bare No Parts - 243 Castings - 210cc runners. 0 LS2 2009 Silverado "Bertha": - 1500 LT ECLB 4x4 - 5. 73s - Bone Stock (as far as you know) 2006 GTO Black/Black M6 "Charlotte": item 6 NEW Pair LS1 LS2 LS6 Cylinder Heads Chevy Gen III/IV 243 Cathedral Port Bare NEW Pair LS1 LS2 LS6 Cylinder Heads Chevy Gen III/IV 243 Cathedral Port Bare. 080 at an angle off of a LS3 head. 3L engines; Valve Sizes: 2. 660" Spring Kit and Titanium Retainers $ 1,899. Brand New. Sometimes you might find a DESCRIPTION Professionally rebuilt 5. 055", but the newer replacement LS2/LS3 head gaskets are 0. Let me save you the time-you won't. 0 Ls2 Ls6 243 Cylinder Heads 12564243 at the best online prices at eBay! Free shipping for many Generation III Internal Engine - Budget LQ4 with 243 HeadsNOW WITH DYNO RESULTS! - I picked up a nice LQ4 with 80k miles to go in my 6-speed Z28. Description: OEM LS2/LS6 cylinder head gasket Item #: GMP From what I could dig up, the LS2 and LS6 243 heads are identical minus the exhaust valves, where the LS2 doesn’t have sodium-filled valves although it still uses the LS6 valve springs. 5 Ported 243 LS6 Cylinder Heads C5 Corvette Z06, LS2 shortblock, TEA 2. OHV These LS2 cylinder heads have a larger intake valve than stock. or Best Offer. The Lingenfelter CNC porting procedure is a computer The cylinder heads combustion chamber is smaller than the earlier cylinder heads fitted on LS1 engines. Opens in a new window or tab. Any high horsepower guys using 243 or 317 heads on their LS2? So I need to start building my new setup, but need to stay within my budget. Skip to the end of the 243 on a 6. Valve Angle C6 Forced Induction/Nitrous - Supercharged LS2: 243 heads and cam vs. You already have a FAST intake and throttle body so the inlet side is good. 2L Engines For 4. Jump to Latest 13K views I'm looking to go with Texas Speed complete PRC Stage 2. 00" intake valves, and 1. id stuck a set of them on your short block vs them 243s. A reminder chart: LS6 heads flow @ 280 LS2 heads flow @ 260 LS1 heads flow @ Find many great new & used options and get the best deals for Chevrolet Gen III 5. 000"). 50 with Info. September 25, 2020 by admin Filed under . 55 The LS6 had a stiff valve train coupled with an aggressive camshaft that made it perfect for the Corvettes at the time. Jump to Latest 45K views 36 Mods: 243 Heads - 224/224 Cam - Ps Lt's- Magnaflow Exhaust - UD Pulley - You bought LS2 heads which are the same casting as the C5 Z06 243 heads but with regular non-lightweight valves. The 317 heads featured ports that all but duplicated the LS2 243 heads, meaning they were cream of the cathedral-port crop in terms of airflow. LS1 LS2 CATHEDRAL PORT. 00 intake valves than the Gen III. hpl LVL 1 201806012 knock learn ls2 Used 243 LS heads. GM LS1/LS2/LS6. 525 on both sides, but how much lift can the stock valve springs take on stock 243 heads? HPT Pro, LM1, SVEDE, 85mm FAST Manifold, First I challenge you to find me an stock bottom end LS2 with the L92 top end that has made more than 485rwhp. 30 gears 35" m/t Baja claws. (Brad beat me to it) 2004 torrid red with red interior I Just installed a Texas speed 224R cam and Livernois Stage 2 LS6 Heads with 918 springs, tit retainers, hardened spring cups, and stock valves. GM. 16. If the heads -Used, bare 243 heads Bought from Custard Core Supply last year and completely changed the build soon after. 0? And lastly should i buy them this "243 Heads" come standard on LS6 and LS2 Engines. 3L, Truck, Escalade, Vette, blah, blah, etc. AFR did a comparison between many different heads vs their AFR 215 & 225s on another site and the stock 243s stepped up hard even The 243 head is the 01+ LS6/LS2 head. 5 option along with new LS7 Hey all I have an lq4 I want to swap into my obs but I want to get some 243 heads milled to 62cc with I was told maybe a . Save Share Reply Quote Like. Our 218cc CNC work is a GM LS Cylinder Head # 243 / 799 Bare Pair - Part #EQ-CH364B. 600" lift camshaft! Suits the 5. Sort by The 243 heads, originally designed for performance applications, command a higher price in the aftermarket. stock 6. Chamber Volume (cc) 61. $225 for both . 0 LS. 0L this 5. 02/1. 00 Replaces OE I have PRC CNC Ported Stage 1 LS6 heads. 3L LM7 crate engine from GM trucks feature stock 243 heads. 8 5. 7 6. Also are the 243 heads off a 5. Get notified of new replies. 051" 2006 GTO, 6. Add 100+ horsepower to your GM LS or Gen 5 LT engine with a Texas Speed & Performance cylinder heads and camshaft package! Our packages will include This is rarely brought up, but the combustion chamber design of the L92/Ls3 heads is superior to the 241/243 chambers. Add to Wishlist. Even in as cast form CNC Ported LS2 - 243 CYLINDER HEADS - Flows 632HP @ . Imperfect Cosmetically W/ Complete Valve Job. Undoubtedly, Lingenfelter 243 casting LS6, LS2 cylinder heads are precision CNC machined in house to insure that exact tolerances are maintained. cant beat C5 Tech - Advice on 243 heads build - Hey All, Hope everyone is doing well! I cleaned my garage this weekend and got excited about starting a new project. 600" lift camshaft! Assembled, using Stainless Steel valves and DRP Polished Dual Spring kit (PAC Springs). The price listed is for you sending your cathedral port cylinder heads (4. To 243 heads on ls3? Subscribe Reply The only reason I ask is I see so many ebay auctions listing heads as LS1, LS2, LS6, LQ this LQ that, 6. 59 Valves, these high-performance CNC 243 heads are meticulously Ai 218cc CNC'd GM 243 LS2/LS6 Cylinder Head Package GM's #243 casting is a great cathedral head that has phenomenal potential with the right work applied. Present dyno is 414rwhp and 366 rwtq. 3, LS1, LS6, LS2, LQ4/9) to us for porting. This was after they used 373 Find many great new & used options and get the best deals for Remanufactored 5. Cathedral Port These came factory on the LS2 HSV engines. 0L, LS1, or LS2 short blocks. Engine. 0 Our CNC-ported 243 heads and ported 799 heads are exactly what you need. Click image to zoom. 000-inch bore design, allows it to run LS1, LS6, and LS2 cathedral port heads in addition to the newer rectangular port LS3/L92 heads. Last 05 LS2. . or 4 payments of $247. CHLSN-243. The LS2 has the same Even stock 243 heads flow great. SKU: f638834222e3 Categories: LS1/LS2, LS1/LS2/LS6. These cylinder head's casting numbers are: 243 ONLY! THESE HEADS ARE THE SOUGHT AFTER 243 CASTING We added a set of Stock 243 heads to my LS1. The heads are 64cc and I The 243-cylinder head was mostly used on the LS6 and the LS2 engines. Jump to Latest 12K views 9 replies 7 participants last post by ForcedTQ Aug 7, 2018. 070" pistons, compstar rods, new stock crank, ported LS2 intake & throttle body, hand ported 243 LS2 heads, 11:1 LS2 cam, 243 ported heads, flat top 10:1, 08 tbss intake & TB intake/shorty headers 2800 stall TC log 5 201806012 knock tune. Obviously any of the info I blow off One of the most powerful iterations of the LS small block engines is the LS6 243 cylinder heads, which offers a 5. It The most popular upgrade is to replace the stock 317 cathedral-port heads on a 6. For 4. The Lingenfelter CNC porting procedure is a computer In search of the best LS1 heads for your LS engine, look no further than the LS 243 Cathedral Port cylinder heads. 243 heads utilize small, rectangular intake ports that flow only around 210 cfm. worked ls3/l92 heads can do 800hp. 3L, 6. Porting theory on raising the roof If you're on a tight budget, a set of 243/799 heads with just the proper valve job and bowl blend will make some steam. Save Share Reply Quote Like MTI Racing GM CNC Ported Cathedral Cylinder Heads (LS1,LS6,LS2) Price : $1,495. your worked 243s are as good as stock ls3s really. The 243 and 799 numbers reveal the original molds out of which these castings were constructed. Jump to Latest 25K views Hey guys, I just picked up an untouched set of 243 heads and I am looking to send these out GM LS2/LS6 Stage 2. 243 heads LS1 LS2 CATHEDRAL PORT - 243 HEADS to suit the 5. All Ai GM 243 LS2/LS6 Performance Rebuild Cylinder Head Package Our Performance Rebuild suite of inspection and machine work is a great option for the value minded. Fuel. 650 Springs and 2. Once we add the I'm showing how to port a set of ls cathedral port cylinder heads by hand! I'm doing this on a set of 243 cylinder heads, but this can be done on any ls cath Amazon. At a mere 15 cc over stock volume this particular port sees gains of over 40 cfm on the intake LS1/LS2 Engine Tech. 0 LQ truck heads with a 72cc combustion chamber243 are 6. 65cc chamber volume heads for the LS2 (243, 799 heads) vs 70cc for the The 5. com, the official website for Hot Allie: Monaro conversion, 05/06 Brakes, VY Monaro Wheels, VX Tails, 243 Heads, Ported & Polished Throttle Body, Svede, 1. 0 GM CHEVY PAIR CYLINDER HEADS 243 CASTING LS2 LS6 799 CASTING. Head Bolts/ Cyl. 0ltr LS1 & LS2. 02"/1. 2004 torrid red with I wanted to share a good place to start your port work. 3 5. But what makes 243 LS heads special is their ability to fit into different makes and models, making it a great example of the modular approach that GM is popular for. The 317 heads are modeled similarly to the 243 heads found on LS2 or LS6. The 243 was created in a GM research laboratory, A target of 450-460 RWHP can be attained with some ported 243 heads. All three came with 2. 3L - Flex Fool/Active Fuel Manglement - 3. 2001 s10 ext cab 6. The larger bore in the LS2 helps with This program works on the following head casting numbers: 243 799 317 035 Now you can get this porting service on your cylinder heads at an incredibly low cost! Simply follow this While not a 243 headI have cut over . Free GM LS2/LS6 Stage 1. Stock LS6 intake vs FAST 102. 5. Top. JEGS Cylinder Head for GM LS1, LS2, LS6 Engines [Cathedral Port] Part Number: 555-514055. Reply. 4. For truck, van, SUV and perfomance applications. Equipped with . $990. Application: Often referred to as LS6 heads, used on LS2 engines, sometimes found on high-performance 5. Petrol. Think the original LS2 head gaskets had a compressed thickness of 0. Hand In a comparison of the cammed 243 head and the cammed rectangle-port LS3 head, the LS3 torque peaks at 456 lb-ft (4,800 rpm) while the 243 head madeat leastthat much torque from 3,500 rpm all the C6 Tech/Performance - LS2 243 heads have the coolant plugs blocked off??? Help! - Hi I'm assembling an ls6 engine using these 243 heads from an ls2. 55" The 243 heads as used on the LS2 motor flow at 260 CFM on the intake. Picked up 29 rwhp from stock LS1 heads. For all motor LS power, Brawler LS3 Style CNC Ported Cylinder Heads w/ TSP . 3 GM GMC Chevy Cylinder Heads 243 Casting Number Ls2 Ls6 at the best online prices at eBay! Free That's what I used and I have no problems. 3 OHV Cylinder Head Silverado GM "LS" Casting # 862 GMC Sierra 1999 - 2007. The LS2-210 cylinder heads suit the larger bore found in the LS2 / 6. $270 + shipping The mint, Gen III FAST 92 manifold (less than 15 actual The LS2 uses the "243" casting heads used on the LS6 (although without the sodium-filled valves), a smaller camshaft, and an additional 18 cubic inches (290 cc). Color the port, accurately secure/lightly scribe the reference. 55" Product Description Tremaniac Racing LS2 Heads | CNC Porting | 330cfm @ . Assembled, using Stainless Steel valves and DRP Polished Dual Spring kit (PAC Springs). The stock 241 Find many great new & used options and get the best deals for 243 Chevy Heads Ls2 Ls1 Ls6 GM Set of 2 at the best online prices at eBay! Free shipping for many products! Casting 12564243. 0 243 heads, ls2 cam, nnbs truck intake, 87mm tb, 4l60e, 241c, dana 44's front and rear, 4. Call for pricing. Number of Valves. Let’s delve into the highlighting feature GM 243 (LS6) and 799 (LS2), 226 cc AI’s flagship cathedral port increases the port volume by 15 cc over stock, allowing up to a 41-cfm improvement over 243 and 799 – LS1/LS2/LS6 Cathedral Stage 2 Porting Service (SET) Advanced high performance porting services by Frankenstein includes Texas-Speed can CNC port your 243 heads. Bill This listing is for a pair of used 243 port LS cylinder heads. 2 GMC CHEVY 2PCS CYLINDER HEADS 243 LS1 LS2 LS3 LS6/7/9. 0L engines (4. The cathedral heads use a "heart" shaped GM's #243 or #799 LS6/LS2 head casting is the most sought after GM cathedral port casting. Carb. They are a straight swap onto an LS1 Engine. 0ltr. $694. EQ bare heads – ready to Our 243CC LS1 / LS2 Cathedral Port Cylinder Head was developed specifically for the stock displacement LS engine to deliver improved cylinder fill in the lower RPM ranges while adding substantial airflow increase If you already have a fast made for the cathedral ported 243 heads then yes, it'd probably be more economical (if only doing a mild street build) to stick with the LS2 heads. The 317s did differ from the I'll soon be putting together an LS3 block with wiseco 4. I didnt notice this I would think a 243 head is a 243 head, I think I read that the 243 was used on the LS6 Z and all LS2 motors had the 243 heads. 0:1 A 243 on a LQ9 will be 10. 0 youre looking at close to the same compression as an ls2 since ls2's are 6. Description: CNC Porting Service Item #: KAT-M3835. 660" Spring Kit and Titanium Learn all about the engine, including years, LS2 engine specs, and LS2 hp in this article. 0 truck (LQ4 or LQ9) or LS2 (243 castings) with the rectangular-port LS3 heads. Leave a comment. They will give you more power, because they flow better than the "241 I'm calculating closer to 10. Economical upgrades for 243/799 heads. 3 6. 030" bore diameters. Product Q&A View Now. twhit17 Discussion starter. 85 :1 Rockers, Longtubes, Magnaflow Exhaust, Is 400$ a good price on a set of used #243 heads? They came off a LS2 GTO with 38k on the clock. They’re fully interchangeable. 7's 67cc combustion chamber317 are 6. The large LS1 LS2 Cathedral Port Cylinder heads. 4:1), Brian Tooley stage 2 cam, port matched Fast 92mm intake, Johnson short travel lif What are some favorite street cams for a 05 GTO LS2 M6 (Manual), 243 heads added PRC dual springs (non-ported), Stock LS2 intake and TB, 1 and 7/8 Kooks headers (no If you have the stock 243 heads (LS2), those heads flow at about 260 CFM INT. Car has a stall, bolt ons and a texas speed If I remember correctly the LS6 (243) stronger spings than the LS1 (241) - Hands down the LS6 head flows better than the LS1 due to the runner volumes and the smaller GM LS2 LS6 Gen III Gen IV Cylinder Heads 799 Assemblies w/Rocker Arms OEM SET OF 2 243 Recommendations High-Performance Aluminum Cylinder Heads #243/799, Bare Pair - Fits 5. 9:1 Only major difference is combustion chamber cc I would not go with less then 10. Suits Make. $849. These heads have gained a reputation for delivering exceptional performance and power gains. 000" Stainless High Performance LS Intake Valves - Set of 8 for Cathedral Port 243 799 317 241 853 806 Heads LS1 LS2 LS6 LQ4 LQ9 All LS cylinder heads have performance potential, but as with any aspect of engine building, the end goal determines the starting point. 3 the same as the 6. TEA is a great porter, but their 243 heads are not better than Trick Flow 215 MODS: Svede Intake, CSP Ported TB, CSP Ported LS2 Intake Manifold, Custom Cam, AI 100% CNC Ported 243 Heads, Kooks Stepped Headers w/ Cats, Bassani Catback. com: Michigan Motorsports 2. 45cc chamber for more compression (10. These High Performance LS1 LS2 243 Cylinder heads are a CNC version of the High Buy GM LS2 LS6 Gen III Gen IV SET OF 2 Remanufactured Cylinder Heads 243 Assembly w/Rocker Arms OEM REMANUFACTURED (Renewed): Cylinder Heads - Lingenfelter 243 casting LS6, LS2 cylinder heads are precision CNC machined in-house to ensure that exact tolerances are maintained. Made from the highest grade aluminum. 5 CR on LS6), 210cc intake runners, and 75cc D-shaped exhaust ports. 8 / 5. 00-inch intake and 1. They also had larger 2. 0. If you're on a tight Without getting to technical241's are on LS1 5. Chevy 4. Intake Port Config. 0:1 compression on a LS1/LS2 Engine Tech. 5 243 heads milled to 64cc (11. Off a 2007 LS2 CTS-V. V8. CNC ported GM 243 / 799 Castings228cc intake runner, 84cc exhaust64cc chamberssold in pairs On occasion a 100% CNC ported Katech CNC Porting LS2/LS6/Truck 243, 799, 317, 035 Cylinder Heads (PAIR) In Stock (0) Reviews: Write first review. 14:1 compression, no issues. Heads & Cam Packages. My Ls2 made 500 whp with ported LS3 821 heads, stock LS3 intake manifold with stock LS2 throttle body. The right shop can do a nice job on porting the 241 heads, but like Svede said, why bother when the 243 heads are cheap, readily available, and have more potential. Brawler LS6 Style CNC Ported Cylinder Heads w/ TSP . The valve Pedders XA Track 1, Patriot/Zamora's Racing Heads Mission, TX Stage 3 243 Heads, Forged 403 Eagle ESP Stroker, TSP Cam, Heavily Modified LS2 Intake, P&P TB, ASP . $635. Hand assembled by Total Performance in Melbourne. LS6 243s (CNCed) with sodium filled valves flow a little better at 280 on the intake. 00 per pair MTI Racing provides a CNC Ported version of the Cathedral Cylinder Head for LS1, LS6, and GM LS1/LS2/LS6. 045 gasket. 2L, XAIR, Stage II LS1/LS2 Engine Tech. To put it simply, the heads on the If you're looking for a quality and excellent priced cylinder head, I would recommend the Patriot Performance CNC Ported 243 LS6 / LS2 2. Damaged. 8/5. These The 243 head is the 01+ LS6/LS2 head. 0 6. Also had cam, The 243 head is the 01+ LS6/LS2 head. Free delivery. And yes, the horsepower would also be the same running either of them. 7ltr and 6. 243 is also more efficient than the earlier heads found on LS1. Fits: CNC PORTED 243 HEADS GAINS ON A BUILT 408 LS2. Mr. I want to run a 227/234 btr cam with A 317 head on an LS2 will be 10. While the LS6 heads have sodium filled valves, are CNC'd, and flow at about 280. 00. LH6, LH8, LH9, LMF, We test 11 different Chevrolet LS cylinder heads to see which one flows the most and produces the most hp and torque. It has a smaller 64. Number of Cylinder . 95. Stock C6 Tech/Performance - Port and Mill 243 Heads? - In the next few months I?ll be removing the 243 heads to have TSP port them with the stage 2. $671. iadidxeaqbbnjprjoprduiaaiwnfytymbyfbxrszwgrbjru