First check the flatness with a straight edge that is long enough to cover most all of the surface where the gasket sits. If over all flatness is ok. Make sure you aren't over tightening the bolts/screws that hold the cover down. If I remember right, all you need is about 5 to 7 foot pounds. As soon as you see the gasket start to squeeze out stop. It helps to put your sealant on both the cover and the head.


If at first you don't succeed, get a bigger hammer.


1941 Pontiac business coupe
1947 Chev Coupe
1969 GTO ragtop