[JSeery]

Flathead Fords really don't have an overheating problem if everything is clean and working properly. Without thermostats they often run around 160 deg, which is too cool, thus thermostats. Some heating problems can be traced to a lot of crud left over from the casting process or accumulated over the years. When you clean the water jackets it is unbelievable how much is in some of these blocks! The next common issue is the radiator, cleaning and rodding out a radiator makes a world of difference. Clean blocks with good radiators and proper fans, shielding, good functioning water pumps, ect, just don't have overheating problems and (like any engine) benefit from running at a higher temperature than they would without thermostats.