66 Dart, 408 runs hot. HELP PLEASE!

@66durgederp another thing you need to remember is that the 66 A bodies were only designed to have a 19" or a 22" radiator. The B bodies that have engines your size can hold 26" and 28" radiators. That's a big difference there. The air opening is only a little over 22" wide so you can't put a big radiator in the opening or if you did it woildn't do much good. You need a extra core, a good fan, and properly sized pulleys.