i have a b18a1 and my brother doesnt need his b16 pistons. can i use the b16 pistons with my ls rods or what would i have to change and ive been told it should raise the compression up a notch.if so what will my compression be with the b16 pistons.

 

I used to have the PR3 pistons in my B18a. It yield about 10.8 C/R. All you have to do is take the old rods/pistons and the new pistons to a machine shop and they will swap it for around $20.