[Gaz64]

I always dummy build my engines before paint.

What if the cam bearing fit is not to your liking?

What if bearing crush on the mains is not right?
(I have had one engine that had insufficient bearing crush, near zero, and the engine shop didn't know what I was talking about. Took the block to another shop, they linehoned the mains again.)

Has valve to piston clearance, and all the clearances around the valvetrain been checked on a dummy run?

Ring end gaps?

Something could be wrong, and I would hate to have to take the block back.