temprature sensor

[martinezalfo]

Hi, Does anybody know where the temprature sensor is located on a 1972 800 thunderbolt if it has one at all or how and where should I install one on this engine?

[boats.net]

The eariler ones didn't have a temp warning.

[martinezalfo]

temp senser

Thanks,I could not find one but found a brass plug in between #2 &#3 cylinder that I can remove and install a sender in its place.