Thanks for that tip as well. I knew the j65 meant Oct 6, 1955, but it didn't click in my head that that was after the year change. I've been thinking I had a 1955 block but maybe it's not. I had an issue with getting the right main bearings, dowel style. Didnt' find that until the rotating pieces were going together. Maybe I better check to see if I've got the right lifters as well. The ones in the engine when I got it were the older milk can style. I just opened the box of new ones and see they're the new style. Thanks again. joe
