Sorry I did not put all that I am doing to the motor. The pistons are going to be milled .030 for lower compression this will put it around 18-1. The marine 6.5 runs 18-1 and lots of boost headgaskets will be felpro and head studs. This build is fun and will turn heads I am painting motor chevy orange with chrome valve covers. When the hood is opened it will look like a gas engine with a turbo but with a closer look you will see its a diesel.