55-56 Radiators

Posted by Kevin AZ On 2010/6/5 19:08:25

Gentlemen & (Ladies),

I'd like some advice on placing a modern radiator in my 400. I've had the old one rodded out etc. but the fellow at the radiator shop advises only to run a 3lb cap! I ran a 7 lb and yesterday determined that the temperature still got too hot for the 7lb cap. When he pressure tested my unit in the tank we observed the tubes flexing under pressure. Since it was already 100 degrees here in the desert SW, and because I eventually want to also drive the 400 at high elevation (7000'+) and get modern air-conditioning too, I'm interested in your thoughts. I'd like to stay 'original looking' in appearance if possible but given my wants I'll concede if necessary. Suppliers and or sources appreciated.

Thanks.