PWR rad opinion/help

I would have to assume it is a dual pass radiator. Looks like the drivers side tank is twice as wide as the other, being separated internally for coolant to flow up and across to the pass side then down and back across. That is just a guess, but the welding/design of that side tank sure makes it look like they are separated.

Its free, what have you got to lose? Looks like those fan may be able to pull some serious air.