are there any OEM pistons that can fit the bore for b20z???? or only way to go higher comp is forged pistons?

 

Nope, if you had a B20B I would say you could go with PHK (B20Z) pistons but the C/R gains aren't too impressive... The way to do it is to just run aftermarket, JE's, CP's, and Wiseco's are all cool in my book... Just my $0.02

 

thanks again lol u always seem to answer on my questions .