ok i know this gets asked alot soo. im going to be running a torquer v3 cam. will be using some custom ported ls6 heads and would like to run 11:1 compression ratio.

with the ls6 engine its stock at 10.5:1 will that be the same on a ls1 motor?

so i could reach that with a cosmetic gasket. and im going to check piston to valve clearance to be safe but will flycutting be needed?

 

It would depend on many variables. What cam, what head gasket, any milling on the heads....etc.

 

i stated what cam. torquer v3. with stock cc ls6 heads. is it possible to reach 11:1 with out milling?