Posted By: mopar dave
using chevy pistons in a mopar - 12/12/13 06:22 PM
what does a guy need to know about using chevy 4" pistons in a sm mopar? i'm concerned about the valve reliefs being chevy uses 23* and mopar sb is 18*. looking at CP and Mahle pistons. i'm gonna need a 4cc dome to get to my compression target of 13.5:1. no shelf piston like that for sb mopar.