Mild 383 build

Well. I got .025 with the 383 piston when I checked it. The tech also recommended a .050 composite head gasket to keep CR around 10.5-1. Now if he's wrong, and your right! Then yeah me. Because that's a win/win for me.


You’re saying you are .025 in the hole AND a .050 gasket??

Ain’t no way on Gods green earth would I ever do that. You are asking for a tuning pain in the *** among other things.

I’d call Cometic and get the thinnest gasket they make even if it’s .030 and it could be thinner yet.

.030 plus .025 is still .055 deck clearance. If you can get it to .040 you’d be far better off than what you are saying.

The compression would be what it is. I don’t think very many people have a grasp on compression ratio and octane requirements. Or even how they test to get octane numbers.

I’d rather be 11.25:1 with .040 quench than 10.5:1 and .075 quench. That’s a ******* disaster and you can tell the dude at Jegs I said he isn’t qualified to give out advice at a Burger King, let alone advice on things like this.