What makes you suspect the radiator? With a recore (even a poor one) it should be cool, unless its way too small for the engine.

Have you checked the thermostat? If it's not opening, that could cause an overheat.

-Boyo


'48 Willys CJ-2A / '55.1 Chevy 3600 / '66 Austin-Healey 3000 / '04 Volvo wagon (parenthood!?)