1937 Temp sender & service replacement head

[Seth Swoboda]

I just installed a fresh engine in my 1937 Ford. This is a daily driver car. The issue that came up is the engine has service replacement heads. The head does not allow the temp sender bulb to bottom out. It will pass straight through the head. I just caught this. Is there anything I can do, other than pull the head off and put on a Ford script head? I'm trying to save $90.00 on head gaskets.

[deuce lover]

Seth,You need the adapter that has pipe thread for the head and a seat for the bulb. John Wolf in OH has those.
Here is a pic of it.

[Seth Swoboda]

Originally Posted by deuce lover

Seth,You need the adapter that has pipe thread for the head and a seat for the bulb. John Wolf in OH has those.

If I use the adapter, will my sender unit sill thread into the adapter? Can you PM me the contact for John Wolf?

[deuce lover]

Yes the threads are correct for the nut on the gauge.Here is John's info:
https://www.google.com/url?sa=t&rct=...c&opi=89978449


Williamson's and even Third Gen and Fred at Southside Obsolete might have it also.

[Seth Swoboda]

Originally Posted by deuce lover

Yes the threads are correct for the nut on the gauge.Here is John's info:
https://www.google.com/url?sa=t&rct=...c&opi=89978449


Williamson's and even Third Gen and Fred at Southside Obsolete might have it also.

Got it. Thank you!

This is my first experience with service replacement heads.

[deuce lover]

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You're welcome ! PS ,Even OEM heads from '37-'48 have the port with pipe threads.

[19Fordy]

You can also drill out a Weatherhead fitting available from NAPA.

[Zeke3]

Or you can e-mail Fred at Southside Obsolete to see if he has one of those adapters. Deuce-lover’s picture above shows the part number.