The current radiator is great. No leaks, no problems. The motor does not overheat even on the hottest summer days.I am getting ready to do some agressive motor work. Larger bores, small increase in compression ratio, bigger cam, balance and so on. I drive the car all year long and it sure gets a little warm here in southern Florida. I am presuming that the added ponies will generate more BTU's and am trying to prepare. Let me know if you have any idea's. Also Mr. Lourd, any pics or more info on your radiator source, Mr. Lipp, would be appreciated.