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Apr 26th, 2026 | | AD Chevy Trucks  Over 6,000 pictures Brad Allen has an awesome collection of Chevrolet factory pictures that he has set up from film strips. Check them out!
Lots of work on Brad's part ... pure enjoyment (and references) for you!
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| | | | Joined: Jan 2015 Posts: 22 New Guy | | New Guy Joined: Jan 2015 Posts: 22 | I had to send my combo fuel/water temp gauge to be rebuilt. I thought the water temp sender thread would be a typical pipe thread. I was wrong. I need to put a temporary plug in the head while the gauge and sender is being fixed so I can use the truck. 1/4" NPT too small and 3/8" NPT too big. I thought this info would be readily available but haven't been able to find. Hoping someone can assist. | | | | | Joined: Jan 2010 Posts: 4,263 Shop Shark | | Shop Shark Joined: Jan 2010 Posts: 4,263 |
Try a 5/8-18 UNF
But not sure what a fuel/ water gauge would be.
| | | | | Joined: Oct 2006 Posts: 9,671 'Bolter | | 'Bolter Joined: Oct 2006 Posts: 9,671 | Pretty sure that's a straight pipe thread in the head.
dg
Denny G
Sandwich, IL
| | | | | Joined: Jan 2001 Posts: 5,337 'Bolter | | 'Bolter Joined: Jan 2001 Posts: 5,337 | Pipe thread did not start until the electric sender came in 1956.
See the USA in your vintage Chevrolet! My Blog | | | | | Joined: Oct 2006 Posts: 1,847 'Bolter | | 'Bolter Joined: Oct 2006 Posts: 1,847 | yes 5/8" NF. A pipe fitting looks like it will fit, and will actually screw in, but it is wrong, wrong, wrong. | | | | | Joined: Jan 2015 Posts: 22 New Guy | | New Guy Joined: Jan 2015 Posts: 22 | Thanks for responses. Appreciated. | | | | | Joined: Jan 2013 Posts: 1,518 'Bolter | | 'Bolter Joined: Jan 2013 Posts: 1,518 | Searched and found this info, thank stovebolters!
1953 Chevrolet 3100261 cu inch, sm420, 3.55 rear, torque tube still,omaha orange, still 6 volt, RPO green glass, side carrier spare, all done In the DITY GalleryVideo of the 261 running1964 GMC 1000305 Big Block V6, sm420, the next cab off restoration
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