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Thread: Lots of pictures coming first time swap LQ9/5 speed going in a 92 k1500

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  1. #1
    Join Date
    Dec 2008
    Location
    South Carolina
    Posts
    794
    Here's the problem....the obs flywheel has standard threads. The pressure
    Plate bolts are shouldered so they center the clutch assembly on the flywheel. The nbs flywheel has dowel pins that center the pressure plate. It uses metric bolts. To use the obs clutch on a nbs flywheel you have to remove the dowel pins, and the metric bolts arent shouldered...and I believe you have to ream out the holes on the obs pressure plate for the metric bolts to go through
    It. So now what keeps everything perfectly centered? some people don't have any problems with it but Iv got too much into my build to gamble on something like that
    2008 GMC Sierra SLE....370ci LY6 with some goodies SOLD
    1995 C2500- LS1 swap with a mp112
    build thread- http://www.ls1truck.com/forums/lsx-t...-ls1-swap.html

  2. #2
    Join Date
    Dec 2008
    Location
    South Carolina
    Posts
    794


    Nbs flywheel bolt on left. Obs bolt on right
    2008 GMC Sierra SLE....370ci LY6 with some goodies SOLD
    1995 C2500- LS1 swap with a mp112
    build thread- http://www.ls1truck.com/forums/lsx-t...-ls1-swap.html

  3. #3
    Thanks for the info man! So running the LS 4.8 clutch with the Sachs 1050 will solve that issue?
    Ethan

    First & only 4th gen Ram 4x4 in the 12's NA 12.747 @ 104.07 (1.663 60')
    2012 Black SC 4x4 1500 Hemi ARH longtubes, Vararam intake, Circle-D 3000, Meziere E-water pump
    Moe's 87mm throttle body, efan, 2010 frontend swap/4.56 gears, Greene Racing tune, E-power steering pump

  4. #4
    Join Date
    Dec 2008
    Location
    South Carolina
    Posts
    794
    Yessir.
    2008 GMC Sierra SLE....370ci LY6 with some goodies SOLD
    1995 C2500- LS1 swap with a mp112
    build thread- http://www.ls1truck.com/forums/lsx-t...-ls1-swap.html

  5. #5
    Join Date
    Aug 2012
    Location
    Portland, OR
    Posts
    81
    Just an FYI that cam seems (based off duration and lift) to be very similar to comp's LS 54-455-11 that I put into my 5.3. It's a 215/223 0.604"/0.61" 112+5LSA. I haven't finished my swap, but heard that properly tuned it is a torque monster in a 5.3.
    Last edited by Jeebalow; 03-17-2015 at 04:53 PM.

  6. #6
    Quote Originally Posted by Jeebalow View Post
    Just an FYI that cam seems (based off duration and lift) to be very similar to comp's LS 54-455-11 that I put into my 5.3. It's a 215/223 0.604"/0.61" 112+5LSA. I haven't finished my swap, but heard that properly tuned it is a torque monster in a 5.3.
    Thanks for the reply! Yeah that was my understanding
    Ethan

    First & only 4th gen Ram 4x4 in the 12's NA 12.747 @ 104.07 (1.663 60')
    2012 Black SC 4x4 1500 Hemi ARH longtubes, Vararam intake, Circle-D 3000, Meziere E-water pump
    Moe's 87mm throttle body, efan, 2010 frontend swap/4.56 gears, Greene Racing tune, E-power steering pump

  7. #7
    Looking forward to seeing progress on this one. I'm using a 5.3 and NV3500 as well, but I'm going carb for my set up.

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