"T0410MN 19N641573 A4-9 are the stamp numbers"
http://cgi.ebay.com/ebaymotors/69-COPO-camaro-427-4-bolt-block-MN-code-STD-crank-rods_W0QQitemZ250400135534QQcmdZViewItemQQptZMotor s_Car_Truck_Parts_Accessories?hash=item25040013553 4&_trksid=p4506.c0.m245&_trkparms=72%3A1205%7C65%3A12%7C39%3A1%7C240%3A131 8

Seems like a lot of money for a repaired 512 short block that needs a rebuild. Wonder if he will get anywhere near what he is asking.

Correct me if I'm wrong, but wasn't that VIN built before the 0602 assembly code?

In the Q&A he lists assembly date as 0602.... in the description he lists it as 0410.

The main value on the block is the stamping but the seller doesn't show it. I would be cautious.