340 T/A Demon??

Ok guys I can't find anything online about this topic...curious if any of you know anything on this one.

I've got a 1970 T/A block - casting 11.69
I also have an early production 1971 340 Demon project car.

What I found interesting was (2) things:

When digging on the T/A motor - it turns out the VIN checked out as a late production 1970 Hamtramck car but NOT an AAR Cuda or T/A Chally....per Barry Washington it's a "leftover 340 TA" that Mopar grabbed for a regular 340 Hamtramck car -- Cuda, Duster?

At any rate, when digging the #'s on my 340 Demon, the motor vin matches the car but due to the driver's side headers I can't get see the motor casting..here's what's interesting, the date casting on that motor is 11.69, too

While this is probably just a normal 340 block (not a TA) it seems it's possible.

Does anyone know, have, heard of this oddity?
A #'s matching late 1970 / early 1971 340 A body or Ebody car getting a T/A block from the factory?

There were only around 5,000~ T/A motors built for the AAR/TA cars so my guess is this is a VERY rare deal. Most owners back in the day would have had no idea I'm sure as the rest of the engine would have been standard 340-4.

Any input - let me know...there's very little out there on this topic.
Thanks!