well i bought some ls3 heads and a complete car intake and a complete truck intake... might see what you i can do with these heads...

 

i ran stock l92s on my 2002 camaro. i put 1000 hp to the rear wheel through a loose th400 converter. estimated 1300hp at the motor. l92s work great to about 800rwhp. they flow about 50cfm more than the stock 317s. i now run the 6 bolt ls3/l92s with the thicker deck. i stated pushing water with the stock l92s. for moderate power 600rwhp-1000rwhp id run the L92s.

fyi-a motor on 15psi of boost with 317 heads will make the same power as l92s on much less boost. (10-11psi)

 

Wat heads would be good for a ls 346 forged motor

 

Whoever said you can't run much boost or spray much nitrous on l92 heads is an idiot. My 12.2:1 370 with l92 heads that are milled .052 and getting hit with a 350 shot.

 

Guess I shoulda seen that this post is 5 years old..