What about using the xtra fitting in the water pump? I'll be using the stock fitting on the LH head in the back for my temp gauge and the one on the pump for my electric fan thermostat. Am I off base doing that? Maybe a T in the stock location?

I think that your fan sensor would read too cold for the fan to come on.

This is a post from Ted re water pump sensor

The normal location for the factory installed temp sending unit is in the left head at the rear. With the ‘punched in’ description you give, it sounds like the left head simply has an expansion plug in the hole. Removing the expansion plug and installing the correct threaded bung within the hole would give you more room for a temperature sending unit. But.... more accurate temperature readings are obtained by placing the sensor units at the front of the intake just before the coolant exits through the thermostat. If the temperature sensor is installed in the water pump, it will be reading the temperature of the coolant entering the engine rather that the temperature of the coolant leaving.   

Lorena, Texas (South of Waco)


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South Australia

Thanks slick