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Thread: OBS to LSx conversion

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  1. #1
    Join Date
    May 2004
    Posts
    2,120
    If you can hang tight for a few weeks I'll have the full length header with merge collectors I'm working on completed and will be able to start making them pretty quick. I just don't have a price on them yet.


    97 GMC, 2002 LS6.

    1991 GMC Syclone #1428

  2. #2
    Join Date
    Jun 2007
    Location
    maine
    Posts
    1,458
    when do we get the wiring harness installation
    09 CREWCAB LTZ SILVERADO, 6.2, SIX SPEED, CAI,

  3. #3
    Join Date
    Nov 2003
    Location
    Denton Texas
    Posts
    20,540
    Wad up the harness and throw it on top of the engine tonight and turn out the lights. In the morning when you turn the lights back on you will discover that the elves will have integrated your LS1 harness into your existing harness.
    See my truck data in the "My Garage" section here... http://www.ls1truck.com/forums/my-ga...tml#post191709

  4. #4
    Join Date
    Jun 2007
    Location
    maine
    Posts
    1,458
    lol damn i cant wait! like christmas all over. maybe i can catch one for a pet
    09 CREWCAB LTZ SILVERADO, 6.2, SIX SPEED, CAI,

  5. #5
    Join Date
    Nov 2015
    Posts
    1
    I scrolled through this thread and didn't see an update on the headers. Were you ever able to produce them?


    Quote Originally Posted by NITROUS View Post
    If you can hang tight for a few weeks I'll have the full length header with merge collectors I'm working on completed and will be able to start making them pretty quick. I just don't have a price on them yet.

  6. #6
    Join Date
    Feb 2014
    Location
    Nashville, TN
    Posts
    11
    I'm swapping a 94 C1500 right now and was wondering if everyone was removing all of the stock engine harness or not. If not, did you just cut it back to the firewall connector? I'm trying to minimize the stray wires underhood if I can. I've cut the LS harness back to a stand alone, so I assume I can just tie into the stock FP relay and i'd like to tie into the stock check engine light too if I can. Keeping the stock AC plug, water temp, oil pressure, and alternator (If I need to to keep charge light off).

    Tips? Tricks? Thanks!

  7. #7
    Join Date
    Jul 2017
    Posts
    2
    Since photobucket sh*t the bed and all pics are gone, does anyone have any updated links for pcm repinning? I'm putting a 24x 6.0 into my 99 Suburban and want to run only the LS pcm.

  8. #8
    Join Date
    Nov 2017
    Location
    Prince George
    Posts
    9
    Quote Originally Posted by Disney View Post
    I'm swapping a 94 C1500 right now and was wondering if everyone was removing all of the stock engine harness or not. If not, did you just cut it back to the firewall connector? I'm trying to minimize the stray wires underhood if I can. I've cut the LS harness back to a stand alone, so I assume I can just tie into the stock FP relay and i'd like to tie into the stock check engine light too if I can. Keeping the stock AC plug, water temp, oil pressure, and alternator (If I need to to keep charge light off).

    Tips? Tricks? Thanks!
    if anyone has some detailed information from this point on would be great... as well as cutting back to a stand-alone harness

  9. #9
    Join Date
    Nov 2017
    Posts
    4
    Does anyone know if Nelson Performance is still in business? Or how to reach them...trying to get my harness reworked.

  10. #10
    Join Date
    Oct 2011
    Posts
    24
    Just check the sidebar on the forum page. There is a link there with all the contact information.

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