The traditional 2-3-4 row thought process doesn’t work with a properly made aluminum radiator. I’m cooling a 500 caddy in a 7k ride with a 2 row aluminum. It had a 4 row copper. Aluminum seems to perform better with less but larger rows. The core thickness of my 2 row aluminum is slightly wider than the copper one it replaced.

This new bolt-in radiator will cool 40-percent better than the OE core design (a three-tube row) that cooled the original 383. The Coronet's original radiator was for a '64-65 Wedge with A/C and
Does a thicker radiator cool better? Thicker radiators cool better if they have enough air flow. Between a thick and thin radiator with low to moderate but equal air flow the thinner radiator will very likely perform better. A high fin count can make a cooling setup loud if the air flow is high enough. How often should a radiator be replaced

Common cool-down methods include larger frontal area and/or thicker aluminum radiators, which have the ability to dissipate more heat quickly, but can also be fairly expensive.

Aluminum radiators do not cool better than original types, the only thing aluminum does better is to take weight off the car. Sure they will work, and since they are new they may last longer, but there is nothing better than a recored and restored original, that is my opinion and i am sure others will disagree, but I listen to the experts like Bob at Glen-Ray Radiator who does it for a living.
Our four-row cores, which we call “Monster Cores,” are fairly stout and may not fit in all engine compartments. EC Economy Core Series – 2Row – Two Rows of 3/4ths inch Tubes = Approx. 400-600+ Horsepower Cooling Capacity. CC Champion Core Series- 3Row – Three Rows of 5/8ths inch Tubes = Approx. 600-800+ Horsepower Cooling Capacity.
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do aluminum radiators cool better