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Forum: LSX Truck Conversions

All LS Based Conversions

  1. Sticky Thread Sticky: OBS to LSx conversion

    Starting this to answer as many questions as I can in one place. I am trying to compile the most complete list of what to do to complete a conversion...

    Started by RedHeartbeat‎, 12-17-2006 01:35 AM
    15 Pages
    1 2 3 ... 15
    • Replies: 145
    • Views: 439,383
    10-24-2020, 01:14 PM Go to last post
  2. Sticky Thread Sticky: Part Numbers needed for an LS1 swap

    Hey Guys, these questions get asked quite a bit, and what better way than to make a sticky with all the part numbers you'll need. I'm open to...

    Started by farmtruc‎, 02-28-2005 11:57 PM
    5 Pages
    1 2 3 ... 5
    • Replies: 49
    • Views: 141,346
    09-24-2017, 03:33 PM Go to last post
  3. Sticky Thread Sticky: PCM pinout diagrams

    2001 silverado (Thanks Banker099) This image has been resized. Click this bar to view the full image. The original image is sized 799x247...

    Started by RedHeartbeat‎, 11-21-2008 08:52 AM
    2 Pages
    1 2
    • Replies: 19
    • Views: 155,226
    04-20-2016, 10:29 PM Go to last post
  1. Vapor purge valve and 4L60 tailhousing

    Couple of questions? 1) the vapor purge valve on front of intake can we get rid of this or is it something needed? If I do keep it does it tie in...

    Started by 468Blazer‎, 07-30-2008 09:44 PM
    • Replies: 3
    • Views: 1,801
    09-16-2024, 07:27 AM Go to last post
  2. Pnp prnd switch

    I'm new here and i'm doin a conversion useing a 2003 5.3 and 4l60e . My question is now that i have removed the un needed wires from the harness i...

    Started by turboanthoni‎, 05-17-2011 10:31 PM
    • Replies: 9
    • Views: 5,503
    09-14-2024, 08:01 AM Go to last post
  3. 4.3 to lq4 fuse box question

    I am swapping a 4.3 in a 2006 silverado 1500, to a 6.0 LQ4 from a 2002 2500 I have engine, fuse box, pcm, and harness from the 2500, am I better to...

    Started by K2006‎, 09-06-2024 10:05 PM
    • Replies: 0
    • Views: 300
    09-06-2024, 10:05 PM Go to last post
  4. Cool How I did 5.3 to nv3500 5 speed

    I'm going to post what I did to mate my nv3500 to my 5.3 since I wasn't able to find any reliable info when I did my swap. I bought the flywheel from...

    Started by tbr89gmc‎, 12-24-2010 10:33 AM
    4 Pages
    1 2 3 ... 4
    • Replies: 33
    • Views: 105,458
    08-21-2024, 08:25 AM Go to last post
  5. Computer?

    If I go with a computer from an LS1 for my 5.3, can I use one that was for a 6 speed car and have it programmed? As of now, the only computer I have...

    Started by Fstfwrd‎, 11-02-2005 09:31 PM
    • Replies: 6
    • Views: 5,589
    07-08-2024, 09:42 AM Go to last post
  6. Tach does not work correctly after 8.1L swap

    Hello all, I completed an 8.1L swap last year in a 70’s GM truck using a MEFI-4 ECM. Never got that damn thing tuned right so I just replaced ...

    Started by DirtyLarry‎, 12-21-2009 04:15 PM
    • Replies: 7
    • Views: 11,045
    06-14-2024, 07:39 AM Go to last post
  7. S10 SWAP -Got my 2001 5.3 & 4L60E home but want NV3500. Are these parts what I need ?

    Hello. New member here. I finally brought home my 5.3 & 4L60E in my minivan since my truck's 4-banger is knocking. The 2nd 4L60 is for my buddy....

    Started by waid302‎, 03-16-2013 11:01 AM
    2 Pages
    1 2
    • Replies: 11
    • Views: 14,474
    05-05-2024, 08:51 AM Go to last post
  8. A/C Help After 5.3 Swap

    Hi Everyone. Swapped a 5.3 from a 2002 Tahoe into our 97 2 door Tahoe. We have been driving the thing all over the place because it is so much fun...

    Started by lovesdunes‎, 07-02-2021 10:59 PM
    • Replies: 6
    • Views: 12,204
    03-11-2024, 12:16 PM Go to last post
  9. What to do?

    1988 k2500 5.7 recently started knocking. So what I wanted to know would it be more sufficient to put another 5.7 in it? Or I have a 4.8 and do a...

    Started by John1988‎, 10-11-2022 08:25 AM
    • Replies: 2
    • Views: 7,091
    01-23-2024, 04:49 AM Go to last post
  10. Johns custom wiring

    So, I just want to put this out there before anyone else gets screwed over by this *******. Johns custom wiring 475 E South Airport Rd Traverse...

    Started by Toyotawheeler79‎, 11-26-2023 12:53 PM
    • Replies: 0
    • Views: 3,748
    11-26-2023, 12:53 PM Go to last post
  11. Lextech's A/C Bracket Kit

    I just finished making an A/C bracket kit that will allow the stock A/C compressor and lines to be used when doing a Gen3 install. I have seen a lot...

    Started by Lextech‎, 10-05-2011 07:28 PM
    9 Pages
    1 2 3 ... 9
    • Replies: 81
    • Views: 104,316
    11-16-2023, 09:38 AM Go to last post
  12. Help needed having a bracket made for my LS

    I have been searching for what I need for a year and no one makes it. (that I can find) The closest Ive seen is LSX innovations one thats for an LT...

    Started by roverc‎, 07-27-2023 07:29 PM
    • Replies: 0
    • Views: 1,267
    07-27-2023, 07:29 PM Go to last post
  13. AC Working after LS Swap In OBS

    What did everyone use to keep the AC working after swapping the motor? I pinned the AC wires to the new PCM but I dont have the AC request signal...

    Started by capricefrk013‎, 05-29-2015 07:38 PM
    • Replies: 4
    • Views: 7,162
    07-01-2023, 01:57 PM Go to last post
  14. OBS K1500 headers

    Looking for insight on some headers for my 1995 k1500 rcsb… I’d really like a set of long tubes preferably stainless steel… I have read that the...

    Started by Rob915‎, 02-21-2023 07:19 PM
    • Replies: 4
    • Views: 2,451
    06-14-2023, 04:58 AM Go to last post
  15. Post 88 C1500 4x4 6.0 LS swap

    New to the site. I am swapping a 88 C1500 to 6.0 and 4l60. All the headers I am finding say they will work on 2wd only. Have any of you guys used the...

    Started by Paul88‎, 02-20-2021 09:08 PM
    • Replies: 2
    • Views: 5,337
    03-12-2023, 08:44 AM Go to last post
  16. 94 Silverado swap questions

    Hi guys, I have a 94 Silverado I'm putting a aluminum LS1 into and I have a few question about the gauges. I have removed the old TBI harness that...

    Started by woomugen‎, 02-17-2015 03:58 PM
    2 Pages
    1 2
    • Replies: 16
    • Views: 27,552
    10-26-2022, 11:28 PM Go to last post
  17. How to use 93-94 4l60e off of the 2001 pcm??

    Ok so I've seen a couple of you do it , but for the life of me can't find the exact threads on it. What steps did it take to use this transmission...

    Started by 81nascar‎, 12-28-2017 06:38 AM
    • Replies: 3
    • Views: 7,559
    05-28-2022, 12:08 AM Go to last post
  18. 0411 Swap

    I am new to site, heard I can get some much needed accuurate, effecient and useful help and information for my 0411 swap. I am looking for the golden...

    Started by 702hotvegas‎, 04-27-2022 07:38 PM
    • Replies: 2
    • Views: 3,177
    05-28-2022, 12:03 AM Go to last post
  19. PCM Tuner

    There was a gent on the forum (I believe) that would reprogram your pcm. Remove rear O2, egr , adjust speedo for gear ratio and tire size and trans...

    Started by hollywood63‎, 07-26-2021 08:39 AM
    • Replies: 1
    • Views: 4,629
    02-23-2022, 04:38 PM Go to last post
  20. Throttle body chatter

    I have a drive by wire TBSS intake . I purchased the adapter to convert wiring to work with tbss from summit when you turn key to run position the...

    Started by jrmott‎, 11-22-2020 07:27 AM
    • Replies: 2
    • Views: 5,905
    02-14-2022, 07:01 AM Go to last post

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