Thanks Jim and Steve
I do understand about the loss of power, but the fact that I can have a running 453 in my dozer for next to nothing was tempting me. I have to be careful about dumping a bunch of money into this very old and partially obsolete machine. I am going to have to sell my youngest to pay for some of the small clutch parts like the camshafts for the master clutch (part no. 040219) and the links for the master clutch sleeve (part no. 040222). I also need a pressure plate for the clutch. I sort of have to be reasonable or i will invest several times its worth.
If anyone can help sourcing, I would be grateful.