Bad news. I took the left front fender off to start on the wiring harness and started the 51 just to let it warm up. I was watching to see if it leaked any more and sure enough it did. I finally found my leak. The block is cracked. It has a 3 inch crack on the #3 cylinder. Too bad the motor was rebuilt by the previous owner. I am on the look out for a 216 if i can find one, or how many parts off the 216 will fit a 235? Any body in the Wisconsin area have a good 216 or a 235 that you want to let go? Any help will be appreciated.