Ya, me too. Like you said earlier , It may have still had some coolant in there. Although I spun it a while with the plugs out to try and get most all of it out prior to checking. Just as the other #s. I don't have a machine shop out in the garage. I have to use what I have at hand, so I know they are not exact #s. I asked the machine shop to take off .040 each and assumed they did so. I could put a stock head back on instead of this one ( I have 2 more). If that might help ? Thanks for racking your brain for me , I appreciate it.