CHAMPION RADIATOR 3 CORE

Looks like the 526 is for a small block, so I'll assume you have a small block?

I run a 3 row Champion on my Duster, it's the larger 26 radiator though and I run it with a Ford Contour electric fan set up. I wasn't ever impressed by the electric fan "kits" the Champion offered, if its the 16" fan with the centered fan motor I suspect the fan motor is probably in the same spot as the water pump pulley? Even if it fit that fan is only rated for 2,500 cfm, which would be borderline in my opinion for having enough cooling power. The Contour set up on my car is capable of 3,500-5,000 cfm on low/high speed. Personally I wouldn't run an electric fan capable of less than 3,500 cfm.

Probably not what you want to hear, but guys use Ford Taurus, Chevy HHR and a Mercedes fan from a car model I forget on 22" radiators with decent success. Factory replacement electric fans are usually less expensive than the fancy aftermarket stuff, have a fan shroud they were designed to work with, and were tested to last hundreds of thousands of miles.