Brett San Diego· Registered
It's pretty common to want to do this, but I don't think you necessarily have to. Put a straight edge on the head surface. Any obvious imperfections? Any obvious valve problems? If you don't see anything with the naked eye, I'd be inclined to just slap them back on with the new gaskets. I just went through this. Engine at 100,000 miles, couple of mild overheats caused head gasket leak. Visual inspection of the heads looked good, so we just put them back on.