LT1-LT4 Modifications 1993-97 Gen II Small Block V8

After Market oil pressure gauge question

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Old 06-23-2011, 10:19 PM
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Default After Market oil pressure gauge question

Hey guys I am going to be hooking up a new oil pressure gauge. I was thinking of tapping it into the location behind the Intake manifold. Anyways could I just get a t-fitting and still have the stock gauge hooked up. I would not care on not hooking it up but I dead gauge would drive me nuts. If so what size is the stock gauge fitting.

So two questions

What size is the block oil pressure fitting.

What size is the stock gm pressure unit fitting.
Old 06-23-2011, 11:14 PM
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You can always use the plug above the oil filter. I believe it is 1/4 NPT
Old 06-24-2011, 02:36 PM
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The kit will have the correct size fitting to screw right into the hole above the oil filter. I can show you pic when I get home
Old 06-24-2011, 08:13 PM
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Well I looked at my sensor. Its a 1/8npt fitting. So the 93 tap is a 1/4 ntp. I may look into using that but I would have to make sure my header clearance would be good. Still would like to know about up top.
Old 06-24-2011, 08:17 PM
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1/8" npt



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