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cometic head gasket
Posted: Fri Jan 24, 2014 11:00 am
by 4thgenphil
Is it worth it for a buitlt n/a motor? Bearing in mind I have a standard one already
Posted: Fri Jan 24, 2014 11:09 am
by NafemanNathan
To be fair we don't really hear of H22 head gaskets blowing. Depends on the brand of the one you've already got, but I'd imagine OEM or equivalent is good for up to 300bhp with out any worries. Just depends on the thickness you require if you're running a different crank/rod/piston setup.
It's not something I've done oodles of research on yet though. I was going to before I rebuilt my motor though. Maybe it's something Rob's looked into. If so, be prepared
Posted: Fri Jan 24, 2014 11:10 am
by Merlin
What compression ratio are you going for? I have an OEM gasket and I am touching 12:1 apparently.
Would these gaskets not be used on heavy FI builds?
Posted: Fri Jan 24, 2014 11:16 am
by 4thgenphil
Merlin wrote:What compression ratio are you going for?
Mahle 11.5 to 1s which are normally a bit higher, flat faces valves and a skimmed head so at a guess 12.5-1 maybe a touch higher
Posted: Fri Jan 24, 2014 12:08 pm
by nucleustylzlude
Not researched this myself as I'm not building my block yet. But I may be picking up a block very soon and building something sooner than I think if funds permit. I need a thicker gasket to lower the compression as I too have 11.5's!
Not too much but enough to avoid knock as possible. Rich at PA has been the devil on my shoulder to try this on the supercharger one day.
Posted: Fri Jan 24, 2014 4:17 pm
by Ted
use them on the escort, expensive but reliable. anybody heard of wells seal, stick that on it aswell and your laughing