The engine in my 72 Duster was orange. Not sure if that meant it was a 275 HP or not but I do know there were other 72 engines that were blue. Now, one of the reasons I started this thread was to see if anyone might have run across this when they were younger or when doing a rebuild. According to the magazine article in the 2nd post there were many other strange things that Chrysler did and depending how rare based on the limited quantities made, there must be other members on here that have either owned or seen some of these very unique models
