The combined Road Runner/GTX package started in 1972 and continued until 1974. If you wanted a 440 in a 72 to 74 Plymouth B body car,you would have had to order the GTX option package. My friend owns this 72 Plymouth Road Runner GTX U code car.
Nice find.. I cant tell the year from the angle, is it a GTX?How about a roached Petty Blue Road Runner with a sunroof?
Doesn't answer your question, but it's one for a RR on the total production.
Friend's car, I took this pic.
View attachment 1660506
I'd have to double check on the year, but it is a Road Runner, Petty Blue, sunroof, small block, auto.I cant tell the year from the angle, is it a GTX?