100% that is a repair in the side of the block , but has nothing to do with the casting area. As far as the vin stamping, yes that was started in 1968 and was on the rear of the block flange by the oil pressure switch location. Bad part about that is it is sometimes very difficult to read being a hand stamp onto as cast location. Matt
Agreed, it was just a general comment.
Just so we are on the same page my comment on the side of the block repair was actually in reference to the comment that Cab made about the "casting hump".
