That absolutely makes sense, so technically it could have been running like this for quite awhile. The casting number was 1968 or 1969. No one would have known if it came warranty from the dealer or thought to check until the first time someone pulled the oil pan. I said it makes sense because of this. Shady *** dealers!
No holes anywhere, you mean that dark spot ? It’s a drop of some of the oil that was at the bottom of the pan, pretty dark since it has sat for awhile
I concur....in pix #2 (zoom in to see better), it appears to be a crack beginning at the divot on the oil pan flange and traveling up to the bottom of the the bore, where the initial damage was noted. To me it doesn't look like casting flash. At the least, disassemble the bottom end, pull the bearings and crank and ultrasonic test the suspect areas b4 spending $$$ on a rebuild. Just my opinion of course.
