headgasket install composite vs multi layer metal

[M1L3S]

So I put the motor back together fired her up and before I knew it.

Coolant in the oil

So I re-torque the arps, and now I'm getting air bubbles in the oil

I didnt deck the head or block before installing mutli layer hg.

So I went and bought a composite gasket going to swap out.

How much psi can a composite handle ? Or is it more about cylinder pressure and detonation?

Anyone wanna give a hand on install

[dsmreck]

from what i read the hold will have alot to do with the studs. i read people into the twenties for sure.

[Goat Blower]

Composites are good if your decks aren't perfectly flat, they make up for imperfections. Without a lot of detonation, they can actually handle a lot.

[M1L3S]

Originally Posted by Goat Blower

Composites are good if your decks aren't perfectly flat, they make up for imperfections. Without a lot of detonation, they can actually handle a lot.

Would they be able to handle 25-30psi ?

[asshanson]

I ran 26-28psi on my 6 bolt with an FP red a few years ago, never blew the composite headgasket. Had standard ARP's that had been torqued a couple times.

[carltalon]

I ran 30psi on a composite all last summer. When I pulled the head it still looked good. It's all in the tune and the studs if the gasket will hold.

[turbotalon1g]

^X2.

[Halon]

I always ran a composite with either standard ARP's or L19's. 35psi with my 62mm was starting to finally give me troubles after awhile, would have moved onto an MLS if I would have kept the car.

[JET]

I used to run 32psi on standard ARP's with a composite. it is a nice fuse to have, I would rather blow a HG than have something else go bad.