My "new" '74 Duster- or why I need a project like a hole in the head

It's a Champion 26" 3 core. The part number is CC374, it was listed for an E-body application originally. I believe the radiator dimensions have changed since I bought mine though, pretty sure what they offer now is a 374B which is taller and doesn't fit as well.

Thank for the reply. I think I'm screwed though. My little early A is tight in the engine compartment. I think it will fit width wise but, the depth..not so much. Looking up specs it looks like the radiator and contour setup is about 6 1/2ins deep. I half a little bit over 5ins from the core support to the waterpump pulley. Back to the drawing board