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

I love your build! I'm stealing some ideas for my '64 Valiant. I'm having cooling issues right now. I read about your radiator/fan setup. I'm going to start collecting the parts to replicate it. I didn't see what radiator you're running. Is it a champion? What part number?

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.