Had a friend years ago that drag raced a 427 big block Camaro. Mid season he would drop the pan and change out the crank and rod bearings to freshen it up. Did this for years with no issues. The one time he did his mid season. He put in the wrong size bearings. The bearings was 0.010" over. Start the car up and had low oil pressure. Couldn't figure out why. Ran the rest of the season. Said that was the best that motor has every run. End of season tear down and rebuild. That's when he found the over size bearings.
'