Actually, something I've never understood about some car enthusiasts is their apparent fear of "clones." So what if a Challenger rolled out of the factory with a slant 6 and and today is sitting in a nice garage with a 440 and R/T badging? If all the proper parts are there, to me at least, that makes it an R/T. It's kinda like people who put stock in cars with matching numbers. Personally, I've always felt that if a person goes to the trouble of rebuilding an old car and used new(er) parts, it shows they obviously cared for the vehicle. Just my 2 cents worth on the subject.