temp guage sending unit? - The 1947 - Present Chevrolet & GMC Truck Message Board Network

1911a1 · 05-05-2014, 05:41 PM

Is there a 3/8 temp gauge sending unit that will work with the factory temp gauge?
The summit racing double hump heads on my engine are set up for 3/8".
According to the summit tech line aftermarket gauge sending units will not work with the factory gauge.
Thanks!

Lee H · 05-05-2014, 05:52 PM

Not that I know of. It's pretty easy to drill the 3/8s hole out and tap 1/2 threads to match the correct sender. You can also put the sender in the intake.

**FirstOwner69** · 05-05-2014, 06:25 PM

See post 15 in this thread. He (brian mac) turns down the originals and rethreads them. I think he charged me something like $20.

http://67-72chevytrucks.com/vboard/s...d.php?t=484537

1911a1 · 05-05-2014, 08:31 PM

Thanks for the replies!
the Edelbrock intake location for it is right next to the water neck kind of tight, also its a used intake with a steel plug in it that may not come out. The heads are already on the block what about steel shaving getting in the water jacket when you drill and retap? I guess you could try to vacuum them out?

1911a1 · 05-05-2014, 08:49 PM

yep, just tried to remove the plug, no dice, heating with a torch might do it but I'm not going to try it.

74baggedbug · 05-05-2014, 09:06 PM

Just get a factory temp sensor and have it machined down.. I went thru those headaches a few months back..

05-05-2014, 05:41 PM	#1
1911a1 Registered User Join Date: Apr 2005 Location: Winnsboro, Texas Posts: 86	temp guage sending unit? Is there a 3/8 temp gauge sending unit that will work with the factory temp gauge? The summit racing double hump heads on my engine are set up for 3/8". According to the summit tech line aftermarket gauge sending units will not work with the factory gauge. Thanks!

05-05-2014, 05:52 PM	#2
Lee H Registered User Join Date: Jun 2010 Location: Upland Ca Posts: 4,147	Re: temp guage sending unit? Not that I know of. It's pretty easy to drill the 3/8s hole out and tap 1/2 threads to match the correct sender. You can also put the sender in the intake. __________________ 1972 C10 SWB, Air, PS, PB, 350/350THM. Second owner. 1965 Corvette roadster, 44K miles, 327/365 SHP, 4 speed, side exhaust, knockoffs, teak, second owner (bought in 1970), Have ALL numbers matching components. My frame off restoration thread: http://67-72chevytrucks.com/vboard/s...d.php?t=556703

05-05-2014, 06:25 PM	#3
FirstOwner69 Senior Member Join Date: May 2010 Location: Wisconsin & Arizona Posts: 4,852	Re: temp guage sending unit? See post 15 in this thread. He (brian mac) turns down the originals and rethreads them. I think he charged me something like $20. http://67-72chevytrucks.com/vboard/s...d.php?t=484537

05-05-2014, 08:31 PM	#4
1911a1 Registered User Join Date: Apr 2005 Location: Winnsboro, Texas Posts: 86	Re: temp guage sending unit? Thanks for the replies! the Edelbrock intake location for it is right next to the water neck kind of tight, also its a used intake with a steel plug in it that may not come out. The heads are already on the block what about steel shaving getting in the water jacket when you drill and retap? I guess you could try to vacuum them out?

05-05-2014, 08:49 PM	#5
1911a1 Registered User Join Date: Apr 2005 Location: Winnsboro, Texas Posts: 86	Re: temp guage sending unit? yep, just tried to remove the plug, no dice, heating with a torch might do it but I'm not going to try it.

05-05-2014, 09:06 PM	#6
74baggedbug Registered User Join Date: Oct 2011 Location: Houston tx Posts: 701	Re: temp guage sending unit? Just get a factory temp sensor and have it machined down.. I went thru those headaches a few months back..



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