Are new aluminum radiators better?

I now run an OER from Classic Industries ( made in USA ) Barrel top Aluminum with Two fat one inch long cores Rad....
22 inch wide with stock 16 LB Mopar Radiator cap... And 160° high flow T- Stat... and I run Cool... With clutching fan... I also was able to attach 1965 stock Optional fan shroud.. by making new brackets..

I live in Arizona and have No issues driving my 273 Commando 65 'cuda on 115° days . ... aluminum radiates more heat Quicker then brass and ...Copper is better at conducting heat than aluminum, but aluminum is able to radiate the heat into the air better than copper because of its lower density. My re-cored 3 core brass / copper radiator did "not" work near as well.. and it was a money pit..

And yes... The Aluminum radiator is 5 Lbs lighter...