1956 water pump on 1954 motor?

[bullit]

My 54 331 seems to have a 56 water pump on it?  Could this be a source for my motor running hot? Also still can seem to locate my water temp sensor?

[55 ledsled]

Your temp sensor is on the drivers side rear of the head. Install an aftermarket gauge to be safe. Have you stuck a laser thermometer on all the hoses and engine to see if your gauge is working? Do you have your hoses hooked up correctly? Even though the 54-56 pumps look similar, they seem to all have different connections for your heater hoses. Looks like the 56 is the same as my 54 and 55. Hope that helps...