[turbo96z28]

Originally Posted by SmokingSS

ok, i havent been up to date with ls2's etc so please bear with me. i saw that it was said the LS3 heads will bolt onto the LS2's and the ls3 heads have bigger ports valves etc, or soemthign like that, now my question is...will the ls3 head bolt onto an ls1? i have no idea, like i said i never cared to learn much about the ls2 vs. the ls1. I ask because i'm building a stroker LQ4 block and looking for heads. if the ls3 heads would work, should i consider those, or would they not even fit? also, i will be supercharged so should i try to get iron heads in the first place, like i said, bear with me.

the entire series of LS engines can swap parts back and forth.

like Al said, the LS3 heads are the same as the LS7 heads from the Z06, just without the extra CNC machine work done.