I forgot a detail about my Master heat gauge. According to the manual, the start of the tiny red line is 180 and the end of it is 212! So with my Master, it usually registers a little over the center mark which is supposed to be 160, and my thermostat is a 160. However a long period of idling will take it up to near the start of the red line. I have rebuilt the motor with the block being tanked, I have a new pressurized rad and I have installed a truck fan. The special fan and the new rad was to try and relieve overheating problems. I get very uncomfortable sitting in traffic watching the heat gauge going up! The sedans are known to run on the hot side. I would assume that the truck would have a much larger radiator. I know my 1951 GMC has a very substantial rad and it is a 1 Ton.
