Agreed, I checked it in the middle, the problem is in the two bearings near the flywheel. Probably the crank is bent which will end this project for a while but it still may be incorrect bearings on those mains. I have no idea if there are rods for these pistons and a stock stroke crank. Thanks for all the good ideas, patience and not making me feel dumber than I already do.
I've been occupied with $1200 in repairs to the rear end in our race car. After 4 seasons the ring gear bolts backed out, 3 broke, all were loose and it wobbled the spool out of round. So, I bought a steel profile milled and lightened spool, bearings, pinion spacer, billet u joint caps, set up kit and new pro gears. The dial indicator told the story there. It now has ARP Aircraft style ring gear bolts and I still need to safety wire them.
It would probably not have made it down the track one more time. I just felt the need to check the rear end and BOOM, there it was looking at me. It performed well on the last pass last year but when we lost that round it was a good thing. Could have let loose off the starting line, revved the 567 to the moon and ended racing for me for quite some time.