[Zderf]

I find myself torquing my aluminum valve covers on a regular basis. My heads are cast iron which expand and contract at a different rate than the aluminum valve covers. I think this plays with the cork gaskets which tend to take a set. Even with regular torquings, I still get some weepage between the head and the gaskets at the aft lower end.

Jack 21, I've never used the grease on the head-side of the gasket. I'll try that next time I change them out.. perhaps that will help with my weepage problem.

My oil pan is steel, so leakage has never been a problem.

Zderf