LT1 Based Engine Tech 1993-1997 LT1/LT4 Engine Related

coolant temp sending unit size?

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Old 12-06-2006, 11:56 AM
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coolant temp sending unit size?

Does anyone know what size the coolant temp sending unit is?

I want to add an idiot light to my CMC race car for water temp, and I need to know what size sending unit to buy.

The choices are: 1/2" NPT or 3/8" NPT
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Old 12-06-2006, 12:31 PM
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3/8 Npt
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Old 12-06-2006, 01:16 PM
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Thanks....This is for the passenger side head correct?

James
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Old 12-06-2006, 02:00 PM
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Yes and actually the one in the water pump has the same threads.
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Old 12-06-2006, 02:55 PM
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Great... Thanks for the help.
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Old 12-06-2006, 04:15 PM
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You could use the driver's side head also, and retain any gage, etc that's in the passenger side head now.. it'll have a plug in the same spot as the psgr side head[both heads are the same..]
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