Buyer beware-The guy with the 806 rod bearings said it only had to drive onto the trailer.....he did buy 6 feet of emery cloth..
I swapped a free VW dune buggy years ago for a 76 Chevy C10, 350/automatic. It was a mosquito fogger, so I pulled it apart after attempting to blow it up. Had small valve head on one side, large on the other, all the ring gaps were lined up perfectly, two pistons had no skirts at all and they weren't in the pan.