The ususal parts vendors have the adapter you need, so you can still use original sender. Try Chevs of the 40s or The Filling Station
Good luck

Here you go! Look at the part below, a simple threaded adapter wont seal like the one below, has an internal seat that makes the seal.

https://store.fillingstation.com/detail/FS-1001/Chevrolet_19301962_TEMP_GAUGE_FITTING_IN_HEAD.html

Last edited by JiMerit Boltr#43; 11/15/2021 8:51 PM.

It's easier to get forgiveness than permission!
1946 1/2-Ton Chevy
1953 Chevy 3/4-ton Factory Stakebed