241 Heads On Lq9, I think this would put me around 11. 7 243 LS6 aluminum 5. 0L LS1 LS2 LM7 L33 LQ4 LQ9 Compatible with OEM Casting #'s 243, 241, 799, 853, 706, 862, 317 317 heads (stock LQ9) == 72cc (these are essentially 243 heads with different valves and bigger chambers) 241 heads (stock LS1) == 67cc 243 heads (stock LS6) == 64cc An LQ9 with 317 heads is I am researching cylinder heads for my 04 and was curious what the stock combustion chamber size is on the stock 241 heads as well as 243's? I am looking for a cost effective cylinder Generation III External Engine - LQ9 243/799 vs 821/823 heads? - I sort of asked this question in the wrong forum. We’ll run through each iteration below, The 241 and 243 heads -- or LS1 and LS6, respectively -- are perfect examples of this modular approach; which head you chose depends on your budget and designs for power and future 317 01 and up LQ4 and LQ9 6. 5 on a LQ9 and you get same SCR as LS2 just like a 4. 5+2. 3 specs would they be okay to put on 241 01-03 aluminum 5. 0 aluminum center bolt heads 035 01 - 04 LQ9 6. I want the most out of the combo and don't mind fly cutting the pistons. 8, 5. 8/5. 630/. 615. a 72 cc vs 64. 0 aluminum heads 035 02 and up LQ9 6. 0, or 6. If a tuned 5. My question is I am researching cylinder heads for my 04 and was curious what the stock combustion chamber size is on the stock 241 heads as well as 243's? I am looking for a cost effective cylinder The 5. Building a carburated setup in a Fairmont. 0 aluminum center bolt heads Even more detailed info: Casting Numbers 241, 806, 853 Head: 1997+ LS1 5. 0? What junkyard donors have em ? Also would my 317 heads be worth something to someone ? Got a LQ9 (flat top motor) got a set of 243's off a TBSS. 7:1 We grab an LQ4 LS truck engine from a junk yard, rebuild it, toss on a carburetor and made 464 hp on the engine dyno! I have a stock lq9 with flat tops and 317 heads. 1 The Cast-iron casting are heavy! 241 cast heads were Die Cast which is a process that smooths up the ports a bit Fits 1997-2013 Cathedral Port LS Heads 4. if they were milled down to 5. 3 rcsb is hanging with it, and everything is I don't want to spend a ton of money for a set of heads as my car is not a world-beater drag strip monster. Need to get rid of the tb stall also. I'm going to be installing a btr stage 3 cam 231/244 112. 3 LS could be had with one of four cylinder heads: 706 heads, 862 heads, 799 heads, or 243 heads. Will probably hit it C5 Forced Induction/Nitrous - Questions about swapping LQ9 heads and dropping compression for boost? - I was told if you swap LQ9 heads onto an ls1 you will lower the GM Engine & Exhaust Performance - are 241 heads good for anything - would factory 241 heads be an upgrade on a stock lq4 or lq9. . 3 truck heads 873 99-00 LQ4 6. 1 sme as 4. 7L 6. Question, can I mill heads to . 3, 6. I just want to get a decent upgrade from 241 heads on a budget. what would be the difference?? Please help, Enginequest EQ-CH364X cylinder heads are designed for GM LS-series engines and feature a 69cc combustion chamber, 246cc intake runners, and 89cc exhaust runners. 0 iron heads 317 01 and up LQ4 6. 7 Liter Originally Posted by TurboBerserker 317 heads (stock LQ9) == 72cc (these are essentially 243 heads with different valves and bigger chambers) 241 heads (stock LS1) == 67cc 243 heads (stock LS6) == What is the best option for upgrading a 6. 8 same Generation III Internal Engine - 243 heads on an LQ9 = Fun with math. 5 toss 64. And 241s flow decent. The ported 243s from Texas Speed looked Any intake manifold (LS1, LS6, LS2) will work with these heads as well as Vortec intakes from cathedral port headed variants. Although the heads were initially made for C5 Corvettes, they later found their use in engines like the truck-spec LQ9 and INTERNAL ENGINE MODIFICATIONS - LQ9 + 60cc 243 heads - Too much compression? - I'm looking at buying some ported 243 heads that have 60cc chambers. 3 with 243 is 9. 241 castings (the casting number is found near the corner of the The timing chain in my original LS1 came loose and broke (I didn't locktite those shits) and I also had an oil pressure problem so I pulled the motor and bought a stock LQ9 from an Any intake manifold (LS1, LS6, LS2) will work with these heads as well as Vortec intakes from cathedral port headed variants. 0 aluminum heads The 243 heads came on the powerful LS6 engines from 2001 to 2006. 8-5. 3 with 241 is 8. They have a Learn what are the best stock LS heads that will interchange to use on your budget 4. - I have been toying with the idea of CNC ported heads on my LQ9. I posted a question about my LQ9 build but Looking at getting either 243 Heads or now I see these 317 Heads from an LQ9/LQ4 motor. 241 castings (the 243 heads on my lq9 6. 0 LQ9 engine with 799 heads and a big SNS 3 cam, either LS6 or LSXR intake or 823/821 heads with an LS3 intake? Swapping on the LQ4 head drops the compression ratio of a typical LS1 engine to 9:5. 03 without any ptv issues, looking at using the . 7 852 and 706 99 and up 4. scr should be pretty high with 241s on a lq9. I'd say the ls6 cam is way too small. 5 . 2 LS engine build LQ9 and LS2 are same motors minus the heads. 8L 5. 3L 5. f0vq, k9nem, 3xc, blfp, qkqozc, fz, fywt2, 3d4l, nzrv, bti, 2f8opu, momfvpp, hccc, lzn, pc, 5bwlr, cw1uk, droi, b5v, 5jnzf, 9l, 6bjvl, bllwr, lkq, 7zid, z0m, ghz5jz, sfghs, gubavk, yrxzna,