The valves the fella sent with the head don't have the same stem diameter and the exhaust valves seem a bit too big. Leading me to question whether either one of them are correct. All I have found so far, was the 12 port story says he used cut down 47 cadillac valves. I found specs for the 47 engine, which is quite thorough, with the exception of stem diameter. If anyone can point me in the right direction I would be very grateful.
