1965 Dodge Dart Charger

Just a thought. you mentioned that the parts usually cast on the same day. I work in a large shipbuilding foundry and these days opposing parts are not usually, and i repeat Usually not cast at the same time. It foundries in the 1960's followed the same practices as we do now, I would guess that is the reason for the difference in the date. Of course, as long as it cast before the build date, you are good to go. Also you said that the paint appears to be Olive in color. I would take a piece of Scotchbrite and scuff it to get to fresh paint. Just thinking that the color has faded and tinted from grease over the last 40 years. It could be white. White paint with grease on it for 40 years might look like olive color now. Just a thought. Awesome work you are doing....