Champion radiator for ~500hp small block??

I went to ebay to look for the champion radiator you mentioned. Vehicle fit shows doesn't fit a body.

Correct, they never said they did. It’s an E-body radiator. But the mounting points are the same, I don’t know what the difference was on the A-body 26” radiators. I’ve seen them, they looked the same. More than likely it’s a parts book to digital issue.

The only thing I will say is that the CC374B was taller than the CC374 and that was a bit of an issue.

But the KKS374 is in my Duster right now.