Did dodge release a 71 challenger T/a 440?

No. No such animal! No T/A's in 71, no T/A's with a big block.
Completely fabricated car. If you don't have a problem with that, and the price is good......
...but that car is a one of none.
Fender tags are counterfeited all the time.
If you want it, pay for a big block challenger, NOT some exotic rare car..... cause it aain't!
(I wouldn't even believe a broadcast sheet, even if he has one, and he wont!)