Installing gauges

[chris_v]

I would like to hook up a temp

I would like to hook up a temperature gauge and water pressure gauge to my 79 150hp. Can I get instructions on where to connect to the motor?

 

[timebandit]

The water pressure gauge goes

The water pressure gauge goes to the 1/2" plug in the top cener of the block. There may be a bypass hose already there to tee into.
The temp gauge orignally had a flat metal tringaluar plate bolted to the head that was tapped to accept the sender. There was a heat sink pellet that went in the hole. I do not know if you can still find these parts.