Casting 6/29/70. Very early in the run and originally from a 1971 ‘Cuda. Built on 8/25/70. I don’t think the oil pan has ever been off of it- check out how the numbers are completed when it was stuck low on the block. Pretty cool. The original head gaskets are still in place and the short block turns over effortlessly. As always if it is for your car let me know! I’d love to get this one back home.