They saw a defect on the head. Took it in to be fixed by a machinist, and replaced all the gaskets to be sure, cuz they couldn't get it do it again. We knew it came from the head cuz you can tell a wet gasket after a leak. All new gaskets, and copper washers were replaced. The valves, and carbs were done too. All I paid for was the valve shims. They didn't make money on the deal, but won a loyal customer from now on.
