Varied Lifter Bore Oil Holes

Now I am gonna have to peer into the galleries from the ends when we get the block back.... from the machine shop trying to deck it square to the bores... again.

I guess I would not expect engine production machining to be of the same caliber of gun barrel drilling (no pun intended).... there is just no need to do so for an oil passage.

Yes it would be interesting to find out. I would also wonder about the feed passage from the mains up to the lifter galley.