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 pulls Way more heat Quicker then copper/brass... My re-cored 3 core brass radiator did "not" work near as well.. and it was a money pit...
And yes... The Aluminum radiator is 5 Lbs lighter...
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