This is a 1970 block. The few engines I've done, the machine shop checks the I.D of the cam bearings after installation with a cam but these were on SBC's.
The shop I used is well known around here for drag racing engines but when I picked the block up, we got to bench racing and I didn't ask about the cam bearings. They mainly due sbc/bbc stuff and more than likely didn't have a 6 cylinder cam to try after they installed the cam bearings.
THEN I forget to check them prior to assembly and put the crank and pistons in first so getting to the cam bearings was even more difficult.
Lesson learned...insure cam goes in and spins freely prior to any assembly.
