Thanks Fred - I'm on the hunt for another head - seems a good idea to have a backup. Thanks Jerry - here is another photo after cleaning up and putting a couple lb pressure in the radiator. 90% of the leak is outside the valve cover, but there is that one drop inside. I can't clearly see the ends of the crack yet. Can you give some detail on how you do the soap bubble test - are you draining the coolant and putting air through the rad cap?
