Ls swap into a 96-98 obs

Discussion in 'LSX + Carb Swaps' started by 5.3_silverado, Mar 18, 2016.

  1. 5.3_silverado

    5.3_silverado I'm Awesome

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    I will. I'll keep this post going as I do things to the drive train.
     
  2. lawjo1978

    lawjo1978 OBS Enthusiast

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    Thanks man... I appreciate this
     
  3. 5.3_silverado

    5.3_silverado I'm Awesome

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    Your welcome.
     
  4. Hev24

    Hev24 Newbie

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    I'm bout to attempt to do my wire harness. some guy that does this wire harness around here Wanted to charge 1200 plus taxes he said he had to order a new harness he always uses on swaps but I been reading ur post and I'll just save me that money n doit
    Like you did

    So you splice the 5.3 harness and sorder it to the 97 harness? Both ecu s gotta be in the truck?
     
  5. 5.3_silverado

    5.3_silverado I'm Awesome

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    Ya just splice in to it. I just have the 5.3 ecu. You will have to add some wires if your going with the throttle by wire.
     
  6. Hev24

    Hev24 Newbie

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  7. DRAGGIN95

    DRAGGIN95 Warranty Killer! Staff Member

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    I am using the Schoenfeld LS conversion headers for the 88-98 in my 95 2wd and they fit and work great, but I understand there are issues on a 4wd.
     
  8. Hev24

    Hev24 Newbie

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    Ok ima get me a set of them
    I'm working on a 97
    But I only get to work on once every 2 weeks since I drive over the road
    Thanks!
     
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  9. 5.3_silverado

    5.3_silverado I'm Awesome

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    I used 99+ shorty headers. Will have longtubes soon.
     
  10. Epicsniper145

    Epicsniper145 Newbie

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    The wiring pinouts for the swap. When comparing them to the lt1swap.com the pinouts for a 411 pcm they don't match. Plus don't you have to splice in wires got the ignition Control?
     

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