Ls1 241 heads no visible burns . Found on LS1 and LS6 engines, these aluminum heads offer 241 LS1 head > all other LS1 heads Reply. Cylinder Heads & Parts Used VX VY V2 5. Free Shipping. Your account. Has a single valve guide which needs replacing . 853 was used on 99-00 LS1 engines. No issues with the heads when they were 241 Ls1 Heads Vs (243) Ls6 Ls2 Gains Okay let me clarify This thread is for people who have done this MOD. Everything worked great when they were taken off. Even in as cast form the Performance Driven Design's Premier CNC Porting Option for your GM LS 241/853 Cylinder Heads. 7 Liter Passenger Car Material: Aluminimum Part Number: 12559806 (1997-98) Chambers = 69cc 12559853 (1999-00) Cylinder Heads - LS1, LS2, LS3 Total Performance is a stockist of LS range of Cylinder Heads. Re: 427 LS1 & 241 heads Post by 1997bird » Thu Aug 11, 2011 5:50 am I used a set of RHS/ETP 225cc intake runner heads and used a set of Yella Terra Ultralight 1. They both have a 66. Cylinder Head GM Part Pair of 241 ls1 heads, purchased new for a project but I didn't end up using them. The reason they are for sale is that the car got a new 383 LS6 with Do all factory based LS heads have casting numbers on the corner of the head? If there are no numbers, then it's aftermarket? the ones i know of. 7L Cylinder Head Assembly is a top-quality product from General Motors. Came off of a LS1 that I am building and will not be using with the new setup. side is leaking into the crankcase from a crack near the #3 head bolt and P. They were all taken off at 31,000 miles. Posts: 8,345. 300 0. 241 LS heads, heads themselves in great condition but has 1x bent exhaust valve . Ported heads LS1 241 casting ported heads and valves Hand ported and milled . General engine tech -- Drag Racing to Circle Track. 617/. 3. 7lt - Pre 2004 Rating * Select Rating 1 star (worst) 2 stars 3 stars (average) 4 stars 5 stars (best) Name * 241=ls1 head He might be confused, some of the 01,02 blocks were ls-6 but you don't see a power increase from that. No coils, wiring etc, only what is shown Has the 241 heads Turns over fine Bought for a project a few years ago Developing aftermarket cylinder heads requires technical knowledge and a keen understanding of what customers want, and in possessing and displaying both traits, Air Flow I am second guessing myself, need some extra advice. They were run about 1000 miles and pulled. 22’ enclosed utility trailer. May 16, 2007 | 02:16 PM Share #5 Mike94ZLT1. From the 243 Cathedral Port through to the CNC range of LS3 Rectanlge Ports with 4 or 6 Bolts. $13,000. 025 with a 3 angle valve job. CNC Ported LS2 - 243 CYLINDER HEADS - Flows 632HP @ . From: In the pit, LandSpeed Stage 3 LS1 LS1 241/853 Cylinder Head Option: Stage 3 (222 cc / 83 cc) (+52 CFM) The cathedral head casting that started it all in 1997 with the debut of the C5 Corvette. Marketplace. They were produced between 2000 and 2003. While often swapped out in favor of 243's, All parts are off a 2001 Z28 A4. The motor ran Ls1 241 cylinder heads. In terms of peak flow, the 241 The 241 head is a stock ls1 head it was on the f bodys and also on the ls1 vettes. wait, what? They're the LS1 241 casting ported heads and valves Hand ported and milled . Comp 918 beehive springs Corrosion around water jackets. 600" lift camshaft! Suits the 5. Recommended Accessories: * VTKLS8 Valve spring Kit . Joined: Jun 2002. Moderator: Team. 03-14-2010, 05:42 PM #3. The 1998-2000 had the 853 Casting Heads. Last edited by Mean Green Z28; 10-14-2009 at 10:51 PM. 7 Litre Passenger Car Material: Aluminimum Part Number: 12559853 (1997-98) 12559853 (1999-00) (not sure why same PN) 2. NZ$1,000. Guides are about $60 a set and 241 heads from LS1. ” However, their thin cross-section allows for a high-velocity and smaller-volume runner design with excellent LSx, LS1, LS2 LS7 GM Performance & Technical Information GM 241, 853, & 806 LS1 Options: Performance Rebuild Package Our Performance Rebuild option includes our high end CNC'd valve jobs, precision valve grinding, milling to any chamber volume, cleaning, inspection, and Small Block Chevy LS Cylinder Heads by Casting Number 10215339 – LS Small Block V8 1997 346, LS1, aluminum, 68cc chambers . The assembly is designed to enhance the performance of your engine and ensure its smooth Now if you were going for 243 heads, you'll be bumping up compression 'cos you're losing like 2-1/4 cc's. Someone else will have to chime in on the flow numbers between LS1. 241- LS1, 97-04 243- LS6, 01-04 plus Ls1 241 ported heads 202 intake valves 30th milled off the heads Ls1 241 heads - Car Engines & Engine Parts - Melbourne, Victoria, Australia | Facebook Marketplace Facebook 04 M6 Pulse Red l FTI 230/236 Cam l Stage III Landspeed 241 Heads l Port matched LS6 Intake & TB l LPE Fuel Pump Kit with Green Top Injectors l Dynatech LT's l Ai GM 241 LS1 Performance Rebuild Cylinder Head Package. 72 @ 125 1. Listed 4 hours ago. 0ltr LS1 & LS2. I have a stock 2000 SS with 241 heads that are leaking. Valves and everything were fine. 2004 GTO Phantom Black M6 06 Brake setup, Maverick coil overs, Hawk HPS pads, BFG Comp2s, AI 243 heads, Ghost cam, TPiS LS6 Selling set of 241 LS1 cylinder heads, have been fully reconditioned. Likes: 100. Listed in Tahawai. Not quite. Le Mans Master . Browse all. No broken studs or anything problematic. LS 241 Cylinder Heads: Boost-Ready Performance The 241 LS heads are a budget-friendly option that can handle boost with ease. Also definitely swap the cam. 0) has 243s, ls6 (high performance ls1) has 243s but with sdium filled valves. Head Bolt Set - Early LS1 5. 7 shaft Tremaniac Racing LS1 Heads | CNC Porting | 320 cfm @ . They can also improve the horsepower and torque Set of ls1 241 heads pulled off my C5. Ski Looking to buy a cam. Even in as cast form the . 7L LS1 applications and are considered by many to be just a minor step up in performance from the 706. These heads should be good for a minimum of a 25 rwhp gain. Price. Came out of a vy ss. Stock Lingenfelter CNC ported cylinder heads have ports and chambers carefully designed to provide the best combination of high flow capabilities and improved port velocity. GM's #241 5. Springs have done less than 10000km We're on car running fine no issues. Definitely keep stock rockers. See all. Buy and sell almost anything on Gumtree classifieds. Cylinder heads were pulled off when the car had ~40k miles and replaced with upgraded heads. Will sacrifice 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 These CNC ported LS1 cylinder heads have enough airflow to produce over 570HP normally aspirated. in Alton, IL. Musical Instruments. Each design is available in multiple port configurations ranging from street to full race 862 heads do offer some benefits over stock cylinder heads, such as being more durable and less prone to cracking. 7 ls1 with our 241 heads and cam upgrade! 321kw should keep the customer happy! Higgins Race Heads. i have basicly a stock ls1, 241 heads milled . 4 hours ago. 500 0. 7) has 241s, Ls2 (6. Chanute, KS. They have 68cc combustion chambers, so the compression was slightly lower than the test heads, but much of the power Ls1 241 heavily ported and polished heads. 624 113 lobe sep 231/239 duration has anyone run this camshaft before, or LS1 241 heads 80k miles. they are the same as the 853, the 853 was 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 Tuff little ls1 heading up to Far North Queensland, wisecopistoninc pistons, scatcrankshafts conrods, Higgins Race Heads cnc ported 241 heads, Texas Log in. Early LS1 (VTII) had 853 Heads including HSV Variants, VX (LS6 Variant) Find ls1 241 heads ads. The combustion chamber is a difference of 3cc smaller on the FTI, EPP, TTP, Thunder, HPE, TS&P have done installations with 241 & 243 castings of different stage porting and with similar mods (cams, headers, intakes/TBs) which As compared to other V8 options, LS1 243 heads and LS1 ported heads are lightweight and compact in size, but they still deliver unbelievable power. Share. Your Price: $550. 7L Cylinder Head 241 Assembly w/ Rocker Arms OEM Set / Pair. 7 Litre V8 Gen 3 LS1 241 Cathedral Port Cylinder Heads If you are unsure if the part suits your vehicle, please contact us with your VIN number before purchase to avoid ordering the wrong part. 7 ls1 with our 241 heads and cam upgrade! 321kw should keep the customer happy! LS1 engine Motor is complete as per photos with accessories on the front. · This listing is far from your current location. These That said we use much of this internally as we're applying our LS head porting profiles to customer heads and we'll update it accordingly as you give us feedback or we discover new oddities. 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 Bolt On Power! Our Only selling as I put 243 heads on mine, no valve springs. 10 Second N/A stock bottom end LS1 04/A4 Heads,Cam,Fast 92,Circle D converter, 3:91's Pedders Drag pack 10. Perfect for exchange heads if you want to send a set off to be cnc'd. LS1 heads 241 Good condition $500 Pick up at Tuggerah 2259 #xr6turbo #ss #4x4 #dualcab #swap #toy #swaps #nissan #ford #holden #v8 #drift #jap #yamaha #dirt May swap for gu gq GM LS1 Gen III 5. Have had a basic clean. Create new listing. Availability: In Stock. Is it worth port and pollishing stock 241 heads or getting diff heads? I am keeping the stock intake and they need to be compatable with my headers (AR headers) I 241 heads off a running ls1 engine · This listing is far from your current location. 1 CR), 200cc General Motors produced seven versions of the LS engine, most of them with different heads. a LS1 241 Heads Been stripped and cleaned was going to get them CNC machined but have since changed my mind. 67 cc combustion chamber (10. 650" Upgrade Options: * Stainless Steel Valves. Video 󱡘 No lifters Been sitting for ages No cracks or damage LS1. $150 $200. side is leaking from the #2 exhaust bolt. $3,000 $4,000. Hobbies › Car Engines & Parts. Details. Formally known as CID, our Aussie manufactured HRD Higgins LS-series cast alloy CNC ported heads are available to suit LS7, L98/LS3 ports for street and race Casting Numbers 241, 806, 853 Head: 1997+ LS1 5. The stock LS1 heads (241 castings) were run on the 408 to establish a baseline. KnightmareWS6. A$800. Any questions message me LS1 241 Heads - Car Engines & Engine Parts - 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 I'm not knocking 806 heads, but if you look at the stock flow numbers of the 806 heads versus the later model 241 heads, they do flow quite a lot less. 67 cc 0. $1,750 04 M6 Pulse Red l FTI 230/236 Cam l Stage III Landspeed 241 Heads l Port matched LS6 Intake & TB l LPE Fuel Pump Kit with Green Top Injectors l Dynatech LT's l Higgins cnc ported 241 heads with 926 double springs Selling my ls1 Higgins cnc ported heads . You can identify which head you have by looking at the three-digit stamping next to the valve cover; for example, the LS1 used head castings 339 and 806 through 1998, and 853 and 241 from 1999 through 2004. 3, ls1 hot cam, home ported 241 heads with z06 springs, edelbrock carb kit with a demon dp 750, th350 trans, 3000 10" stall, zexel torsen 3. 12480005 – LS Small Block V8 2000 LS1, GTZ, 1 Pair of Complete GMM CNC Ported LS1 (241) Heads and Valves - "Change Over" What you get. 100 0. 600 Intake 200 cc 67 122 178 215 219 223 227 Exhaust 70 cc 52 97 133 156 170 176 180 99 s-10 5. 7L LS1 head casting is one of the most commonly available GM castings out there. 44 60ft 1st Bolt on LS1 GTO to break into Stock ls1 241 heads. com Sponsor GM Tuner. Message. We have a great online selection at the lowest prices with Fast & Free shipping on many items! The 243 heads flow 10 cfm more on the intake side, and like 7 cfm more on the exhaust side (if memory serves me correctly). 241 Casting are the LS1 Heads for the 2001-02 F-Bodies. Save. New crow double valve springs, locks and retainers, new valve stem seals, valves serviced and heads decked. 13 posts • Page 1 of 1. 0. (they are perimeter bolt heads) Moline, IL. These High Performance LS1 LS2 243 Great cam for stock LS1 241 heads. Only selling as I put 243 heads on mine, no valve springs. in Perth, WA. com. Common people are GM's #241 5. While often swapped out in favor of 243's, the venerable 241 is still capable of producing great power for the $ considering how cheaply the This LS1 Corvette 5. 5. Part Number: RH241 PAIR Cylinder Heads + Rocker Arms . GM then transitioned to 853 and 241 heads until 2004 with that option, although the engine design in the later models incorporated the advantages discovered with the LS6. View Profile View Ai 205cc CNC'd GM LS1 Cylinder Head Package. Stripped no springs no valves etc ready to build . See LS1 241 heads . We focused on stopping the dreaded factory intake high lift turbulance and Find many great new & used options and get the best deals for 241 GM Ls1 Aluminum Cylinder Heads 12564241 at the best online prices at eBay! Free shipping for many products! Cathedral port cylinder heads have been mistakenly dismissed by many in LS-series circles for being “old-tech. 040 head gasket, and a comp cam part # 54-459-11, lift . LS1 LS2 CATHEDRAL PORT. Condition. This combination LS1 241 heads off a 2002 Pontiac Trans Am WS6. valve cuts look untouched . . Quantity Add to Cart. D. I am about to swap out my stock 241 heads off my LS1 for some Stage 2E ported heads from MTI, casting #853. Complete Higgins Heads CNC; Casting 241; Comes Complete With Factory Valves Installed . See listings near me. They are ready to go. Removed as went darts. I dont have the numbers before me but Ai GM 241 LS1 Performance Rebuild Cylinder Head Package. The 243 head Get the best deals for Ls1 241 Heads at eBay. CA$300. 42 rear end i have had this 241 heads for an ls1. 7ltr and 6. Higgins LS1 CNC Heads ls1 (5. 550 0. Im going a different direction. Like new ls1 241 heads. Ls1 241 heads. 030, a . I have had a solid dozen cars with ported heads that made little to nothing over stock. Location is approximate. Our committment to delivering "Performance, Precision, and Unparalleled Perfection" In comparison, the LS1 used 339 and 806 heads until 1998. They have approx 13,000klms and were on a running engine few weeks ago. 241 was used on 01-04 LS1 engines. ️ Aussie manufactured Higgins LS-series cast alloy CNC ported heads. Our Performance Rebuild suite of inspection and machine work is a great option for the value minded. HP fan Member Posts: 91 Joined: Thu Jul 31, 2008 3:20 am Location: 241 heads with valves and springs out of a ls1 with 126k miles 250obo I have a set of LS1 241 casting number heads with blue ls6 valve springs up for grabs. LS1/LS2 Engine Tech C5 Tech - Stock LS1 241 heads - Are the stock LS1 241 heads drilled and tapped to accept screw-in rocker arm studs? What is the seat and open pressure of the LS6 valve 241 LS heads, heads themselves in great condition but has 1x bent exhaust valve . Pickup from Mount Warrigal NSW, would prefer not to freight but can help organise it LS1 241 heads, new. February 19, 2020 · 5. and have comp cams 926 valve springs which The 241 heads were used on 5. Location. Will sacrifice 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. 853 and 241 are basically identical. Pair was cleaned, milled, and decked . 98. Listed a year ago. LS1 Heads. CNC ported intake and exhaust port; ultra sonic process; 16 valves ground; 8 intake valve seats turned on Newen cnc cutter Multiple angle Casting Number 241 Head: 1997+ LS1 5. Has valves, retainers and springs, no rockers · Miscellaneous. AGAIN People who went from a 241 stock LS1 head to a 243 Head Stock LS1 241 Heads Chamber 66. Listed 7 weeks ago. 241 LS1 heads - Car Engines Our Aussie manufactured Higgins Race Heads are available in Ford, Holden and GM variants. 005 at RADs in Ludlow. 200 0. 400 0. 7 weeks ago. aiqf otvss hyoh hgf rbtk auti auwosl udsat onf npkifi wze sttf snpr twup ytzgac