75 pounds is good if you did that with the crank.  I can look that stuff up and if I do today it will be by luck. I am out of town for 2 weeks again. Is your tractor stock bore? How much horsepower are you looking for? There used to be one west of here that I guess was close to 90, but nothing in it bore wise and maybe stroke wise too was stock.  I would also look at other items if it was me before I started shaving the head. Send me a P. M. if you get a chance today with your phone number. Also Andy if you read this both Huntington and Charleston are on my list before July 1.