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V6 Oil Pressure Sensor Thread Pitch?

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  • #1

    V6 Oil Pressure Sensor Thread Pitch?

    Hey guys,

    I wanted to know if anyone knows what the thread pitch is for the oil pressure sensor. I was planning on plumbing my accusump in this weekend and putting the T fitting into where the sensor goes since its after the oil filter. I don't want to have to drill and tap into the block if I don't have to. I have a 1/2 NPT to a -10 AN but that is obviously too big. I think its a 3/8 NPT? I'm not sure though and don't have a thread guage to double check, and cannot find info online. I know the V6's sensors threads are smaller than the V8's. Hoping maybe someone here would know.
    Adding power makes you faster on the straights. Subtracting weight makes you faster everywhere.

    For six days work may be done, but on the seventh day, you shall have a track day, a Sabbath of competing, to time the FIREBIRD; whoever does any work on it shall be put in last place.
    Tags: accusump, big, block, check, double, find, fit, guage, guys, hey, info, line, mounting, oil, plan, planning, plumbing, pressure, put, sensor, sensors, side, thread, wanted, weekend
  • #2
    Found out it is 1/4'' NPT. The preferred port size is 1/2'' NPT, but 3/8'' NPT is acceptable. Should I attempt to drill/tap the oil pressure sending unit location to the larger thread size or attempt to drill/tap directly into the block? I don't want to create a bottleneck in the system. Any suggestions that don't involve spending a lot more money?
    Adding power makes you faster on the straights. Subtracting weight makes you faster everywhere.

    For six days work may be done, but on the seventh day, you shall have a track day, a Sabbath of competing, to time the FIREBIRD; whoever does any work on it shall be put in last place.

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    • #3
      If you drill it out you will get chips inside. how are you going to remove them. Tapping with pipe thread is a little different than normal taps too because of the taper. tap too deep and you're screwed.
      When in doubt, Whip it out !

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      • #4
        I do have a spare blown motor sitting in the garage that I can use for mock up/practice. I'm just not sure if there are any plugs in the engine that connect to the main oil gallery. I know of one in the block, but it is behind a bunch of the accessory components on the front so its unusable for this purpose. Tapping won't be an issue, but I am concerned about shavings being left in those passages. If worst comes to worst, I guess I'll just order an adapter plate that connects between the block and oil filter.
        Adding power makes you faster on the straights. Subtracting weight makes you faster everywhere.

        For six days work may be done, but on the seventh day, you shall have a track day, a Sabbath of competing, to time the FIREBIRD; whoever does any work on it shall be put in last place.

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        • #5
          update to this thread in case anyone is interested. I decided to just purchase a sandwich adapter plate that bolts in between the engine block and oil filter. The oil filter will then spin onto this adapter. Reason being price wise going this route was only about $20 more expensive than ordering all of the other AN and NPT fittings to make it work and will save me a lot more time/frustration when installing.
          Adding power makes you faster on the straights. Subtracting weight makes you faster everywhere.

          For six days work may be done, but on the seventh day, you shall have a track day, a Sabbath of competing, to time the FIREBIRD; whoever does any work on it shall be put in last place.

          Comment

          • #6
            Smarter and cleaner way to go.

            1998 Camaro Z28 - Bright Red, 6.0 TR224, 4l60e, 3.42 Eaton TrueTrac
            1989 Camaro IROC-Z Convertible - 355 big tube TPI, WC T5, 3.42 Zexel Torsen, CTS-V/C4 brakes
            1955 Bel Air 2 Door Post - 357 TPI, Muncie M20, 4 wheel disc

            2006 Saab 9-7x 5.3i Daily Driver

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