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-   -   Does dual outlet temperature sending unit exist? (https://forums.maxperformanceinc.com/forums/showthread.php?t=885477)

hutchwareltd 05-17-2026 06:15 PM

Does dual outlet temperature sending unit exist?
 
1967 400 - I have the stock manifold that has only one threaded port and 670 heads without ports. I'd like to keep the electrical temp idiot light and add a electrical temp gauge. Does a dual outlet temp sender exist that would allow idiot light and gauge?

SRGN 05-17-2026 10:53 PM

There's no single unit that I know of. If you are handy with electronics, you can build a board that triggered a relay when voltage feedback through the gauge circuit hits a predefined threshold, and use the relay to activate the light. You could alternatively find a thermostat housing that has a threaded fitting, and use it for the warning light.

frankyboy455 05-18-2026 07:23 AM

in one of my cars (1968 Camaro) I used the autometer 3654 water temp gauge (link at bottom of this post) to monitor temp, and as it is already configured to activate two different functions at two different threshold of your choice, I chose one ot light up my idiot light at 188 degrees (my choice) and the other one to start my cooling fan at 194 (my choice again). You can change those thresholds at any time, I do so when going at a bumper to bumper cruise for obvious reasons.

https://www.autometer.com/2-1-16-wat...-fse-3814.html

hutchwareltd 05-18-2026 10:05 AM

Thanks, that's a great idea. Could even fab up a little can or cylinder for it.


Quote:

Originally Posted by SRGN (Post 6616428)
There's no single unit that I know of. If you are handy with electronics, you can build a board that triggered a relay when voltage feedback through the gauge circuit hits a predefined threshold, and use the relay to activate the light. You could alternatively find a thermostat housing that has a threaded fitting, and use it for the warning light.


hutchwareltd 05-18-2026 10:17 AM

That's a good option. I would hook the high zone output to the idiot light.


Quote:

Originally Posted by frankyboy455 (Post 6616454)
in one of my cars (1968 Camaro) I used the autometer 3654 water temp gauge (link at bottom of this post) to monitor temp, and as it is already configured to activate two different functions at two different threshold of your choice, I chose one ot light up my idiot light at 188 degrees (my choice) and the other one to start my cooling fan at 194 (my choice again). You can change those thresholds at any time, I do so when going at a bumper to bumper cruise for obvious reasons.

https://www.autometer.com/2-1-16-wat...-fse-3814.html



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