Join Date: Jun 2009
Location: Southeastern Pennsylvania
Like I said, is it aluminum or iron?
As for heat, a brass 3-row radiator, fan shroud, 5-blade extra cooling fan (or preferally a 6-blade clutch fan) and OEM spec 190° thermostat is almost guranteed to solve any overheating problem.
Checking radiator function is easy. Using an IR gun, check the temp of the upper and lower hose at a fully heated idle. Temp drop should be 30° or so.
Amateur restorer. Well, sometimes I have been paid for it. But not right now.