78 Vette Oil Pressure sensor thread pattern

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Jun 21, 2010 | 03:06 PM

Daytona Rick

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From: Windy City IL

78 Vette Oil Pressure sensor thread pattern

I am adapting a different oil pressure sensor to a 78 small block and trying to find out what the thread pattern for the sensor into the block itself.
Any helpwould be appreciated.

thanks

Jun 21, 2010 | 03:13 PM

...Roger...

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From: Dayton, Ohio

Do you need to know what threads are on the sender or what threads are on the adapter that screws in the block ?

Jun 21, 2010 | 05:29 PM

Daytona Rick

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From: Windy City IL

Quote:

Originally Posted by ...Roger...

Do you need to know what threads are on the sender or what threads are on the adapter that screws in the block ?

I need to know the thread patten in the block for the unit. I'm switching to Italian gauges and adapting them to custom gauges. the sending unit for the new oil pressure gauge needs to be adapted to the opening for the GM oil pressure hole.

Jun 21, 2010 | 06:00 PM

lars

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From: At my Bar drinking and wrenching in Lafayette Colorado

GM oil pressure sending unit holes are 1/8" NPT.

Lars

Jun 22, 2010 | 09:08 AM

Daytona Rick

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From: Windy City IL

Quote:

Originally Posted by lars

GM oil pressure sending unit holes are 1/8" NPT.

Lars

THANKS Lars, couldn't find it anywhere and a few shops didn't know.

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