My spare is missing the alloy header with all the temperature sensors in so I cant measure them. Need to know the thread size of the water temp sensor for the guage on the dash.
I'm going to fit a 2nd temperature sensor for my Megasquirt so plan on fitting it here
(so it reads the same water as the stock sensor) and then run the dash guage off an adapter in the thermostat housing which has an M16x1.5 bung fitted for some reason.