LQ4 with 317 heads and cam question.

[00_shortbed]

I have an LQ4 that is bored .030 over with 317 heads and soon a texas speed 224r cam. My question is what type of comp ratio would i be looking at with the .030 bore and stock 317 heads?? Also i have a pair of 241 heads, could they be better than the 317's. the motor is natural asp.

[Chris@LSXPS]

flat top piston, or dished piston like factory?

[ecld_07]

+1

[kha4079]

mill the heads .040 itll leave ur heads to about 66.5ccs youll bump your compression ratio up and still be 87 octane friendly

[00_shortbed]

The pistons i want are flat tops. Im looking for like 10 to 1 comp, would flat tops get me there? I dont know about milling the head a whole lot but i can always bore it more, like .040 or so.