This is a stock replacement headgasket for the LT-1. I am going to place a 383 in my car next week and has wondering is this a good gasket to use to help lower compression on my setup. I will be using TFS 23* heads and -20cc dished pistons. Or should i go with the 1074 head gaskets which i have seen a lot of people with forced induction use. Looking at getting 10 psi with a P-1Sc with 2 core intercooler. Do you guys know of what size pulley do i need?

Thank's

 

dont use the stock replacement one, use at least 1074

just pully it up to near max blower rpm....p1-sc is 62,000rpm

ratio of crank to blower pully size x 4.10 x max rpm your gunna use with your motor

 

What kinda max psi range with the a P-1sc on a 383 with the two core or stepping up to a 3 core intercooler.