Kevin, I'd think you need to recore it, but it might be able to be cleaned well. My guess is it has 3 rows, but would have to see it to be certain. If you're towing a trailer my thought is you need at least a 3 row radiator built to support higher pressure than the one made for 1950 or 1951, but others may have different ideas. I have a 3 row aluminum core with a Spal 2020 cfm fan and an aluminum shroud made by Old Air Products--fan is thermostatically controlled. The problem we have in Dallas is that summer lasts about 300 days a year and traffic can be crazy slow. I should add I'm not concerned with being period-correct as respects the radiator. If a new aluminum one works better, that's what I'll use. Good luck.

~ Jon
1952 1/2 ton with 1959 235 | T5 with 3.07 rear end