Scrap, Separate components (brass, copper, aluminum) to maximize the value. Time consuming though.Used. I have no idea of the condition or what they came from.
Chances are that they were taken off becaise they were good but the vehicles were shot. Still, I believe you are right. Who wants to restore a vehicle, then put an old radiator in when you can buy a new one for $300?They were taken off the vehicle for a reason; they're probably shot. You'll have a hard time identifying what they're for. Scrap 'em - copper/brass prices are up.