Head Gaskets For NOS
I use the GM MLS's and I have sprayed well over 300 with no problems. I'm sure your Cometics will work fine though.
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i use the gm mls's and i have sprayed well over 300 with no problems. I'm sure your cometics will work fine though.

The flexability to have multiple thickness's and bore sizes is a big advantage.
My motor is not even 4.030 and we use bigger than a 4.060 gasket.
Quench matters if your spraying alot of nitrous.
Last edited by ATVracr; Dec 30, 2008 at 01:42 PM.
how tight is your quench on your motor?
like my motor for example, i run a .040" gasket, my pistons stick out of the hole .007, so my quench is .033".
from my understanding the tighter you can get it the better. it helps prevent detonation. but if you go to tight you have to worry about the piston hitting the head when the piston rocks at tdc
http://www.yellowbullet.com/forum/sh...d.php?t=100545 ..... Quench thread
And Tony Mamo suggested we use the bigger bore gaskets a few years ago. Not sure exactly why but they have worked great so far as we have not had a failure yet.



