Radiator in 63 Dart GT

bcschief said
A 6 blade was optional in 63 w/ac or HD cooling. I think it maybe the same as a 273 in 64

Thanks. This is a seven blade. I can't find any usage of one till 67. This is also a non AC car. So I'm not sure how this seven blade found it's way in. 58 years is along time for people to screw things up. lol