I have a spare jdm b16 block laying around (has p30 pistons) and my old p73 pistons from my b18c5 laying around as well. I know a jdm p30 equipped b16 has about 10.4:1 c/r, how would the c/r be affected if I used the p73 pistons in this block?
just wondering and thanks for any replies

 

It'll drop it about .6 - .8 of a full point in compression.

 

thanks.
Hmmm sounds like a good cheap turbo block for low boost in the wife's car...