70 340 getting built ..one problem

That's not why they wipe--Look deeper. J.Rob

You assume much...
and you know what they say about assuming ...
It makes an *** out of ume.
Everything is sized right, galleys arent stepped, clearance good. The holes are off, period, and theres no counter bore to compensate. The bearing sits oiling hole centered over intersection of main and cam feed...its wrong.
That's half covering the main feed and if you leave it.. you're depending on the oil that gets past the small v cut of the intersection of the main n cam feed. full groove , doesn't fix ****..
Many things can wipe bearings, detonating, tight clearance, over torque, dirt, lack of oil etc