Do Copper head gaskets compress like regular “sandwich” types gaskets?
. No. The advantage of copper is that it will not compress. The final installed height is the thickness of the gasket. Q). I have an overhead cam engine with an aluminum head that has been milled. The mechanic says that I need to buy a new head because the timing is off. Can a thicker gasket be used to “shim” the head to original specification? A). Yes, we can make a thicker gasket and depending on your “shim” requirements we can attempt to get as close as possible to the original deck height.
