M-code Dart, Barracuda 69 440 bare block

edd440se said
Casting date is 8-9-68, WAY to early for the A12 cars.

It might also be too early for a M-code A body. Mine was built in the first run which was on December 1st 1968. Why don't you post the vin number of the block? If you did that might solve the mystery of what it came out of.