Temp sensor to small

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Groovin65

Post subject: Temp sensor to small

PostPosted: Sun Dec 04, 2011 5:21 pm

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4 BBL ''Hyper-Pak''

Joined: Tue Jan 11, 2011 10:21 am
Posts: 48
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Rebuilding my 65 Valiants 225. Bought a new head and while going to install the temp sensor in the water jacket had a bit of a

moment.

The sensor out of the old head has a 1/2 nut on it. Threads in nice.
Took it out to put in the new/installed head but it just slips through. Looks like the thread itself is 1/2..? Anyone else ever had this issue?

I have read around through this/other sites but seems usually the opposite issue. Im looking for a larger aftermarket sensor but no luck.

Is this something I can buy??

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SlantSixDan

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PostPosted: Sun Dec 04, 2011 6:56 pm

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Board Sponsor & Contributor

Joined: Thu Oct 31, 2002 5:39 pm
Posts: 24486
Location: North America
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You have a pre-'64 head, which is drilled and tapped for 3/8"-18 Dryseal thread. The '64-up sender has a 1/8"-27 Dryseal thread. Find an adaptor bushing with 3/8"-18 Dryseal OD and 1/8"-27 Dryseal ID.

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