I am going to have to do something to my head before I blow the gasket and was wondering if anyone has had experience with a copper gasket I've heard they were hard to get to seal but I have an old 52 dodge truck with a straight 6 and had no problem with its coipper head gasket sealing and I ran one on a fork lift that had a dodge industrial 6 and it was fine. I know the cummins will have more cylender pressure but I would think a set of ARP studs should clamp it tight enough. what do yall think

 

Bad idea for a street truck. It only takes a few miles to get annoying little leakies.

A stock gasket, a great surface finish on the block and head and ARP studs TQ'd properly will hold just about all you can throw at it within reason. 65 PSI and over 600 HP is doable.

Don~

 

with copper, use fire-rings and a coating. then it should hold.