There is a great place in Superior Michigan, that will custom make radiators to fit old car, but to your modern specs and need out of aluminium. I had one made for my 460 in my 48 ford truck, with a built in trans coolers, for about 250.00 It is rated for up to 600 hp motor for cooling. There are places out there you just have to do the leg work! It's great when you can find one for an old rare application that bolts right in!