OK, I think I've gotten the conclusive answer:

www.youtube.com/watch?v=pE4l1a9vy4E&t=71s

Starting at 2:59

Check out that right side #5 main cap bolt. I don't know how or why, but it appears that I have a 194/230/250 main bearing cap bolt. Time to make a spacer!

-JW

Last edited by klhansen; 02/01/2023 8:26 PM. Reason: Removed embedded video.