71 Swinger that lost it's TA block somehow-$2500

pretty simple on the casting number... if it starts with a 2, it's not a T/A block.
Van Senus did not have records.
Still looking for my rebuild balance card.
But I don't recall the block number having been on the card.
If I'm selling a pig in a poke, I may have to drop price. Was someone spoofing me when they pointed out the thicker skirts and where you could drill for 4-bolts?
Were THEY even fooling themselves at the time and thought that's what it was?
I just know it's not going to be visible with the factory power steering in there..and my cramped garage.