2 row Aluminum Radiator

Normally, a big 2 row has the ability to cool your car a little better than your original 3 row. but there are a lot of other factors involved. ECP is a big 2 row. So it does have some extra volume that can help cool that bigger motor you are putting in there.

Have you run your current combination with your 3 row? What were the results?
Do you want to keep your oem fan shroud? or are you going to use electric fans.

The answers would further define whether an aluminum radiator is the better choice or not and then it might also define whether ECP is the right aluminum radiator for your vehicle.