My moms 66 fury poly 318 automatic was red, my wife's 67 dart 273 2bbl automatic was red, my 68 cuda 318 2bbl automatic was red, my 69 cuda 340 4bbl automatic was turquoise. The '67, '68, 'and '69 were built in Hamtramck, but I don't know the plant origin of the engines. I don't remember seeing any orange SB engines prior to 1970, but might have been asleep or otherwise occupied at the time. I did see a lot of turquoise 4bbl BB's through '69, but the HP's were orange in '69, '70, '71. Seems everything went corporate blue by '73 or '74. Not sure about '72. I worked as a mechanic in '70-78 at a dealership in Detroit, saw too many cars over too many years to remember the grey areas around 1973, but I'm fairly sure there were still a few '73' SB's that were still orange. All of the 440 police cars '73-'78 were corporate blue. Those cars had a first gear lockout bracket bolted to the transmission pan to prevent use of manual first gear. All of the cops wanted it removed:)
