temp guage sending unit?

[1911a1]

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]

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]

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]

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]

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]

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