I am looking for an aluminum replacement radiator for a 1956 Oldsmobile Super 88 with the original 324 "Rocket" motor, A/C condenser and auto-trans cooler. Any leads on who might offer such or what is recommended?

 

I have an aluminum radiator in my 54. I would think 56 would be the same but you will need to verify that. I researched aluminum radiators forever. What I wound up with is one for a 68 Didge Coronet. It was he correct width with the flanges on the sides to mount it. It has the outlet on the lower left side and the inlet near the middle of the radiator. It is a little shorter than the Olds radiator so I made an air damn to go underneath so all the air flows through the radiator. I had to use a flex hose on top and a bushing on the lower hose since the Olds hose is slightly larger than the radiator ( I think it a 1 3/4 hose and a 1 1/2 outlet). Since the outlet winds up slightly higher I had to cut a little off the lower hose to make it fit. I have been pleased. It solved my cooling problem after I installed the AC. I added a 6 blade fan on the engine and added a pusher electric fan that comes on at 180 degrees or when I turn the AC on. I never found anybody that made an aluminum radiator for a 54 Olds.