Originally Posted By a12rag
I got an NOS unit for my car when I did it . . . . although the original in the car still looked good, I did not want to take a chance . . . pretty sure the OE and NOS unit were Aluminum . . .


i was going to say the same thing. back in my junkyard ownership days, [1972-1984] we sold radiators [brass/copper] and condensers [aluminum] separately for scrap.
i can't remember ever seeing a copper/brass condenser from any american manufacturer.
beer