Miller Mylan (Login 417strokers) Member from IP address 70.77.66.15
Does someone make a copper head gasket for a 351 cleveland that is .020" thick. I know moroso sells a .040" but .020 would fit my deck clearance better.
A .020" thick copper head gasket might just start to be getting into the "too thin" range depending on how deep your O-ring grooves are machined & how far your O-rings stand out of the deck surface.