I've had "squish" on a Jag engine as close as .010... That was scary. The head gaskets on those engines is nothing but a thin corrogated steel sheet with a copper coating. You have to put a sealant on them or they leak. I had to mill the deck .012 to get it to level out.. That brought the center pistons almost flush with the deck. The head gasket is only about .010 thick... I was scared that the piston was going to touch the head when reved... Luckily the bore was small enough that I didn't have to worry about piston rock... and the pistons were J.E. forged....

You may have already answered my question Reed, but I found a .030 brass gasket by Milodin. Anyone ever try those with aluminum heads. I'll look for that .036 Cometic Informaniac. 10x - both engines were fresh from winter rebuilds when I had the problem with the valve in one. Both are being done again this winter. Its and annual thing for me As far as I am concerned I've seen the positive affects this has and am not understanding why some of you think this is only useful for high compression/power engines.

BT

The .036 is custom, just takes them a little longer.

Do you have a phone number Infomaniac? I didn't see one on thier site.

BT

BT,
Cometic will make custom gaskets at the same price as catalog pieces as they are all laser or water cut. They offer MK IV, Gen V, and Gen VI gaskets in the following thickness:
.027"-.030"-.036"-.040"-.045"-.051"-.060"-.065"-.071"-.074"
1-800-752-9850
1-440-354-0777
Bob

Sweet. Sounds like I am going to get squish where I want it. Thanks for the help everyone.

BT