I agree, a quench dome would be a good move. But, I'm still going back to the budgetary concern that was given near the start of this thread. He didn't have quench before, so the gasket is not going to make that any worse. Good grief, if the motor hadn't already been built I wouldn't have suggested a thick head gasket, although, I have used them in builds for specific reasons. But, that knowledge didn't come cheap, so I'll leave it at that.