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  #1  
Old 01-12-2014, 08:05 PM
SS Shaun SS Shaun is offline
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Default Big Block Oil Pressure Fitting difference

ok so i am making my next list of things i need/want to get for my chevelle. I am looking at the oil pressure now to install my gauge. But i found 2 different ones what is the difference between the 2?
http://www.ss396.com/mm5/merchant.mv...uct_Code=N-133

http://www.ss396.com/mm5/merchant.mv...uct_Code=N-142
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Old 01-12-2014, 09:25 PM
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shadowgray396 shadowgray396 is offline
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The difference is the tread size that goes into the engine block. One is 3/8 and the other in 1/2. I think mine was 3/8??? They can be found at a good hardware store or parts house. Just need the 45 degree bend. I know the non oil pressure gauge dash (or idiot lights) uses a different fitting to the one that has an oil pressure gauge.
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Last edited by shadowgray396; 02-15-2014 at 11:58 PM.
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Old 01-13-2014, 07:08 AM
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Hank70SS Hank70SS is offline
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Like Ray said, take your sensor to a hardware or auto parts store to get the correct fitting. I believe mine is 3/8" also.
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Old 01-13-2014, 07:43 AM
SS Shaun SS Shaun is offline
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from what i read one is for a high performance block and the other is for the non high performance block. meaning one is for 2 bolt one is for 4 bolt. Mine is a 2 bolt. I am going to see if the hardware store near me has them Might give me a reason to work on the car today since I have nothing new coming in..lol
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Old 01-13-2014, 09:17 AM
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Ken Hayes Ken Hayes is offline
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Shaun, the 2 fittings you have links for are.....

133 = 3/8" NPT male threads
142 = 1/2" NPT male threads
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Old 02-15-2014, 06:00 PM
Czeto Czeto is offline
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By the way, neither one is "correct".
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