[318 LA] main bearing info needed

I went back and looked at the pictures of the Chrome-A-Shaft crank box. It does show radiused 2 inch rod journals but doesn’t mention anything about the mains. That’s going to have to be looked into a little closer. You have a picture of a main journal and a dial caliper measurement? Being such a custom piece made for Bob Glidden, it’s possible it may have some odd main bearing journal measurements like small block Ford.