I understand. But I can tell you from personal experience, a GOOD two row like a Griffin, for example will out cool the hell out of something like what you have. I had the original V8 radiator in my 65 Valiant re-cored like you, but I went with a four row. I ended up going with a universal Griffin because it just was not enough. A four row holds a LOT of water......but the problem was it just could not shed enough heat. The Griffin solved it.
