2 - 1''Row Alum rads Any good

I'm putting together the same setup but 383 instead of 440. I've seen both of these radiators, and I'm certain the two 1" tubes will be far more efficient at flowing than more rows of smaller tubes. Partly it's a volume thing, based on total area of the tubes. Liquid flows better through a larger tube than a smaller one due to the ratio of wall area to liquid volume. Smaller tubes will be harder to push a given volume through and would result in greater pressure. I've checked with multiple BB Dart gurus, who all agree - you really want a 26" radiator. These things are not easy to keep cool. YMMV, of course.