"4 little main bearings"?

#1: 2.684” (front)
#2: 2.715” (2nd)
#3: 2.746” (3rd)
#4: 2.777” (rear)

By comparison:
Chrysler 426 (gen 2) hemi 2.75"
Chrysler 392 (gen 1) hemi 2.6875"
Chevy LS 2.65"
Chevy 427 2.75"
Ford FE 427 2.75"
GMC Atlas 2.756"