head gasket

[minhbestunnin]

at what psi do i HAVE to upgrade the head gasket? ..... 9 ? ..... 14 ?

[sr240mike]

Change it when it blows. You should be fine for awhile on 14psi with the stock turbo as long as you are not overheating or detonating.

[orion::S14]

What motor?

What turbo?

My 1967 AMC can only handle a couple pounds before the HG blows...but my KA-T does 12psi from a T3/T4 all day long, stock block. And the pistons will typically crack before the HG blows from detonation...

A typical SR can easily 14psi, which is about the limit of the stock T25...as ^^^ said.

- Brian

[minhbestunnin]

sorry, its a redtop with the stock turbo

[89s132b]

You will be fine. I'm running a GTiR t28 at 18psi w/o any problems. stock HG is a good fuse incase you have a detonation experience.