A buddy of mine has a '69 Charger. He contacted U.S Radiator www.usradiator.com They make a 4 core with all the factory dimensions and looks of the 22" and 26" rads. His car never gets hot even when sitting in the Carlisle traffic. I haven't looked into it much yet as my Dart never needed one. I recently acquired a '70 Charger with a 440. The guy gave me 3 extra rads because he said the car always overheated. So now I'll have to check usrad myself.