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Thread: Oil Pressure sensor adapter for OBS swap

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  1. #1
    Join Date
    Sep 2011
    Posts
    264
    Rock,,, you need this .. It will allow you to reuse the oil pressure sensor from your old motor.... swapping the 98 dash definitely add some complication to things...

    http://www.ebay.com/itm/LS1-LS6-LS2-...9WAGGw&vxp=mtr
    Last edited by 1991SSP; 11-20-2016 at 11:48 AM.

  2. #2
    Join Date
    Nov 2014
    Posts
    13
    Quote Originally Posted by 1991SSP View Post
    Rock,,, you need this .. It will allow you to reuse the oil pressure sensor from your old motor.... swapping the 98 dash definitely add some complication to things...

    http://www.ebay.com/itm/LS1-LS6-LS2-...9WAGGw&vxp=mtr
    Do you by any chance have the part number of the sensor you used? I've got BWD S4074 sensor and it's way bigger than 1/8 NPT thread. Appreciate the help, gotta get this thing running.

    Rock

  3. #3
    Join Date
    Sep 2011
    Posts
    264
    Quote Originally Posted by rockusaf View Post
    Do you by any chance have the part number of the sensor you used? I've got BWD S4074 sensor and it's way bigger than 1/8 NPT thread. Appreciate the help, gotta get this thing running.

    Rock

    you will need to use the stock stand off as well from your older vortec engine

  4. #4
    Join Date
    Nov 2014
    Posts
    13
    The engine was a 1991, no vortec, I couldn't find anyone that had anything that would work, picked up Autometer #2268 that is 16x1.5 with an 1/8NPT tapped hole figuring I could drill/tap it to fit the sensor if need be. I'm going to ask a dumb question (seems too easy so it'll probably never work) before I drill a hole in a $13 piece of brass, any reason you can't just tap the tan wire off the stock LS3 sensor to the tan wire going to the gauge and get it to work?

    Rock

  5. #5
    Join Date
    Jan 2009
    Location
    Monett Mo
    Posts
    106
    Quote Originally Posted by rockusaf View Post
    The engine was a 1991, no vortec, I couldn't find anyone that had anything that would work, picked up Autometer #2268 that is 16x1.5 with an 1/8NPT tapped hole figuring I could drill/tap it to fit the sensor if need be. I'm going to ask a dumb question (seems too easy so it'll probably never work) before I drill a hole in a $13 piece of brass, any reason you can't just tap the tan wire off the stock LS3 sensor to the tan wire going to the gauge and get it to work?

    Rock
    I just done that on a swap I done for a guy at work. We used the factory ls sensor in his truck and seems to be working just fine.

  6. #6
    Join Date
    Nov 2014
    Posts
    13
    Awesome, I'm gonna try that first and hang on to the adapter if I need it. I figured it'd be too easy there would be no way it would work. Thanks for the info, I'll definitely follow up if it works.

    Rock

  7. #7
    Join Date
    Nov 2014
    Posts
    13
    Well the gauge is pegged all the way to the max and it does move some (but not much) when I turn it over but it doesn't reset back to 0, any ideas? Also, seems like the VATS wasn't turned off like it was supposed to be when I had the computer tuned because I tried to fire it and it starts, runs for a second and dies. But it did run so that's promising and with just headers it's loud as hell.

    Rock

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