Champion radiator - I cut her open

So would an ECP 2 core, 1 inch, painted black to blend in, an A body mopar shroud and my 7 blade mechanical fan. Would that do the trick?
Or would you go twin spal 12" thermo fans with a fan controller hidden.

It should. Most of these cars can be cooled with a decent sized 2 core radiator with a good mechanical fan with shroud and a fan clutch. I think your 440 would be pushing the limits of a 22" 2 core, a 26" 2 core would probably work though. Painting it black to blend in might hurt your cooling some though, as the paint adds thickness. Painting the tanks would be ok, but I wouldn't paint the fins.

I would not use Spal 12" fans. They're super expensive, and they don't work any better than much cheaper options. A single Spal 12" fan costs almost as much as the OE Ford Contour dual fan set up I run. And if you're talking about 12", 1300 cfm fans, they don't combine for a high enough CFM rating. I don't think you can pull off a stand-alone electric fan set up that flows less than 3500 cfm for a driver. For a 26" radiator I wouldn't do anything but the Contour set up. They flow more, they're proven reliable, and they cost less. It's a great set up, especially since the fans are like $130 and flow up to 5,000 cfm Dorman Electric Fans 620-104. My whole installation is here My "new" '74 Duster- or why I need a project like a hole in the head

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@goldduster318 made a fantastic PDF for this install too, it's attached below.
http://www.forabodiesonly.com/mopar/attachments/electric-fan-26in-radiator-pdf.1715101084/