[HO455]

I've got both aluminum and copper radiators in vintage vehicles. The cost of a completely rebuilt copper radiator is more.
In my experience copper lasts longer and are repairable. The only way an aluminum radiator can be repaired is with epoxy.
A friend of mine just tried to have his brand new aluminum radiator epoxied and it didn't work. He is going to try it again doing it himself this time. They took their newly (LS) repowered Nova out for a test run with no grille installed and took a rock dead center in the new radiator and broke 2 tubes. And I thought I had bad luck!
Anyway long stupid post, but yeah copper is good. That's what I have in my Burban. The aluminum radiators I have used are generic roundy round ones that are dirt cheap but require making mounts.