65 Dart 6 cyl rad

A 4spd radiator has no provisision or holes for automatic transmission lines.

Like I said, they are fairly rare.

Plus, its a round top radiator. They look better in an early A.

Doesnt matter to me what radiator you chose. But my choice would be to rebuild the original.

Three spd std would also have no cooler line holes.
Back when they were common I'm sure there were as many if not more Std's than auto
Yes I want to keep the round top that is why I am not buying later mod rad or an aluminum one