I owned and drove my 38BuickSpecial for most of the past 32 years with its original running motor . 75K now. I DON,T think it' EVER been torn down. Lots of leaks now. Parked a few years ago, because of them, EXCITED about the swap , Don,t like to modify the original car to much. But would like a cross country driver. I will try to get some pics to post All this information will be helpful and will use. Like the idea of a.c. to keep my wife cool ,,! smiley face Bobby