I think it all started when a couple of publications erroneously put it in print. I remember reading it way back when. It just didn't happen.
Think about all the "stuff" that wouldda had to go along with them. They wouldda had to have the W2 rockers and shafts. The intake manifold. Some kinda special one off W2 exhaust manifolds, because they never came with headers. Talk about a huge expense. ....and you know how Chrysler was about spendin money. LOL