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#1 |
Senior Member
![]() Join Date: Mar 2006
Location: Clarkrange Tennessee
Posts: 1,787
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putting a aftermarket oil pressure gauge
Looking for a little help? I am putting a aftermarket oil pressure gauge and need to know what fitting you guys use to connect them behind the block?
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#2 |
Registered User
Join Date: Jul 2018
Location: Catskill Mountains,NY
Posts: 8,924
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Re: putting a aftermarket oil pressure gauge
The kits come with everything you need to install the gage . Don’t use the supplied plastic tubing buy the copper . I just put one in my 72 on the new motor
__________________
Mark 72 c20 custom camper Husky edition, 66 SS396 Chevelle 1964 Hawk, 63 Avanti,62 lark 1969 AMX , 1968 c20 stepside ,85 K20 1977 Suburban sold 68 anniversary. |
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#3 |
Registered User
Join Date: Dec 2022
Location: Redcliff, Alberta
Posts: 237
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Re: putting a aftermarket oil pressure gauge
I went with an electric pressure gauge because I didn’t want an oil line, copper or not, inside the cab.
Here are some screen shots of what I had posted.
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"If it ain't broken, fix it 'till it is!" |
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#4 |
Senior Member
![]() Join Date: Mar 2006
Location: Clarkrange Tennessee
Posts: 1,787
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Re: putting a aftermarket oil pressure gauge
I am still going to run the stock one in the dash cluster and going to use a under dash autometer oil and temp gauge. Going to use the same spot on the back of the block but need a fitting that has 2 outlets?
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#5 |
Registered User
Join Date: Dec 2017
Location: Elkhart, Texas
Posts: 1,882
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Re: putting a aftermarket oil pressure gauge
You'll probably have to use a TEE with a short pipe nipple.
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#6 |
Registered User
Join Date: Jul 2018
Location: Catskill Mountains,NY
Posts: 8,924
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Re: putting a aftermarket oil pressure gauge
Or use another oil port . The one under the distributor isn’t easy to access. I used the one on the front over the timing cover for the stock electric unit on my 85 . It already had a mechanical hooked up under the distributor. There is also a port just above the oil filter boss on most Chevy v8s . Both would be a lot easier to access if you’re running two . I made a bracket for the sender so it didn’t vibrate . No leaks after three years
__________________
Mark 72 c20 custom camper Husky edition, 66 SS396 Chevelle 1964 Hawk, 63 Avanti,62 lark 1969 AMX , 1968 c20 stepside ,85 K20 1977 Suburban sold 68 anniversary. |
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#7 |
Senior Member
![]() Join Date: Jul 2000
Location: North Texas
Posts: 3,665
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Re: putting a aftermarket oil pressure gauge
The oil pressure port behind the intake manifold is 1/8" NPT.
Lots of tee fittings to choose from: https://www.amazon.com/s?k=1%2F8+npt+tee+fitting You may also need a section of straight pipe to raise the tee. Not all blocks have an oil pressure port above the timing chain cover, but most have a port just above the oil filter.
__________________
Mike 1969 C10 LWB -- owned for 36 years. 350/TH350, 3.08 posi, 1st Gen Vintage Air, recent AAW wiring harness, 5-lug conversion, 1985 spindles and brakes. 1982 C10 SWB -- converted from 250-six to roller cam 350, Vortec heads -- sold 1981 C10 Silverado LWB, 305, TH350C -- sold, but wish I still had it! 1969 C10 (not the current one) that I bought in the early 1980s. Paid $1200; sold for $1500 a few years later. Just a hint at the appreciation that was coming. Retired as a factory automation products salesman. Worked part-time over the years for an engine builder and a classic car repair shop. Member here for 24 years! This is the very first car/truck Internet forum I joined. I still used a dial-up modem back then! |
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#8 |
Registered User
Join Date: Apr 2022
Location: Moorpark, CA
Posts: 775
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Re: putting a aftermarket oil pressure gauge
OP, if its a SBC there should be a NPT plug above oil filter you can use for the electronic sender. Some headers can be a conflict with that port.
To maintain the stock sender but use that same port, a combo of 1/8 NPT fittings to allow both senders to occupy that space. Due to headers, I had to come up with a combination for this and also clear the coil mounted on my intake manifold. straight, 90 and 45 degree fittings are available on Amazon and some auto part stores |
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#9 |
Senior Member
![]() Join Date: Jun 2002
Location: Murray, Kentucky
Posts: 3,650
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Re: putting a aftermarket oil pressure gauge
I have to add this about the plastic line. I was driving my 73 Firebird yesterday and the plastic line split and by the time I got to a place I could stop there was oil in my boot, on my pants, and all over the windshield and dash. The line was probably 6 years old.
I'm changing out for a wired pressure sensor... Good luck, Rg
__________________
Roger '68 Short step - https://67-72chevytrucks.com/vboard/...d.php?t=849675 '69 ('70?) 2wd Blazer - https://67-72chevytrucks.com/vboard/...d.php?t=856475 '70 GMC Jimmy 2wd '73 Firebird - https://67-72chevytrucks.com/vboard/...d.php?t=853203 Ideas - https://67-72chevytrucks.com/vboard/...d.php?t=851743 |
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#10 | |
Registered User
Join Date: Jul 2018
Location: Catskill Mountains,NY
Posts: 8,924
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Re: putting a aftermarket oil pressure gauge
Quote:
It’s against building code here to use plastic tubing going to the fridge for the water and ice . That should tell you something
__________________
Mark 72 c20 custom camper Husky edition, 66 SS396 Chevelle 1964 Hawk, 63 Avanti,62 lark 1969 AMX , 1968 c20 stepside ,85 K20 1977 Suburban sold 68 anniversary. |
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#11 |
Senior Member
![]() Join Date: Jul 2000
Location: North Texas
Posts: 3,665
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Re: putting a aftermarket oil pressure gauge
Yes, my original line and gauge worked without leaks for 44 years, When I replaced it with an electric sender and gauge, there were signs of a slight oil leak in the gauge fitting, but not even enough to form a drop.
__________________
Mike 1969 C10 LWB -- owned for 36 years. 350/TH350, 3.08 posi, 1st Gen Vintage Air, recent AAW wiring harness, 5-lug conversion, 1985 spindles and brakes. 1982 C10 SWB -- converted from 250-six to roller cam 350, Vortec heads -- sold 1981 C10 Silverado LWB, 305, TH350C -- sold, but wish I still had it! 1969 C10 (not the current one) that I bought in the early 1980s. Paid $1200; sold for $1500 a few years later. Just a hint at the appreciation that was coming. Retired as a factory automation products salesman. Worked part-time over the years for an engine builder and a classic car repair shop. Member here for 24 years! This is the very first car/truck Internet forum I joined. I still used a dial-up modem back then! |
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