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Old 03-02-2009, 09:28 PM   #1
2ndCIB
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Question which temp sensor

I put summit vortec heads on my 350. When I went to swap over the sensors in the head they were the wrong size. The vortecs looks to have 3/8 and the stock head had 1/2 sensors. What is the best way to make this work? New sensor reccomendations? Its a 72, 350 with gauges. It has two sensors, driver front and passenger rear. Which is which? I think the driver front is for the gauge and the passenger is rear is for an idiot light. But there I go thinking again.
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Old 04-10-2009, 04:44 PM   #2
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Re: which temp sensor

Im doing this now and ran into the same issue. Did you get it figured out? Heres what im going with. Both for a late 80's model 350.

WT357P for the light.
WT359Z for the guage.
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Last edited by monte0185; 04-10-2009 at 04:45 PM.
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Old 04-10-2009, 11:06 PM   #3
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Re: which temp sensor

Apparently I am wrong after doing some research. Check out this thread.

http://67-72chevytrucks.com/vboard/s...63#post3250263
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Old 04-11-2009, 06:24 PM   #4
neonlarry
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Re: which temp sensor

Have someone cut your sensor down and rethread it for 3/8" npt. Thats about the only solution that works.
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Old 04-11-2009, 07:11 PM   #5
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Re: which temp sensor

I bought my heads from a junkyard and they came with sensors but I didn't use them, I put an aftermarket gauge cluster at the same time and I didn't hook up the factory gauges, I just used the mechanical one
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Old 04-11-2009, 10:00 PM   #6
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Re: which temp sensor

I did some checking today and the actual sizes are 5/8 and 3/4. The original one is 3/4.
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Old 04-18-2009, 02:32 PM   #7
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Re: which temp sensor

I can turn these down and rethread them to 3/8 pipe. How much demand is out there for these?
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