ls swap

  1. S

    1500 LS Swap and Build

    Hello, I have a 1990 C1500 Scottsdale that belonged to my Great grandfather. I have been riding in that truck since I was 6. When he passed away, his son took it (Papaw) and gave it to me when I started college. Papaw never wanted me to put money into it because he saw it as a money pit. Because...
  2. 96k1500extendo350

    ls swapped 5.3 4l80 combo skipping gears with throttle body sensor on ?

    So I’m looking to buy this 92 Chevy c1500 with a ls swapped 5.3 with a 4l80e which use to have a 4l60e guy said before everything was fine with the old transmission and now with the new 4l80 it’s been acting weird said it was skipping gears with a throttle body sensor and they had to “delete” it...
  3. M

    Clutch start switch/CPP switch on a ‘92 LS swap

    -Post moved to correct thread-
  4. 1994chevycheyenne

    Full Breakdown of GM Crate Engine Options – What Would You Drop in a GMT400?

    I’ve been planning upgrades for my GMT400 and found myself deep-diving into all the GM crate engine options—350, 383, 454, LS, LT, even the ZZ and LSX stuff. I got tired of bouncing between spec sheets, so I made a full breakdown video that goes through all the families, torque curves, pricing...
  5. O

    92 nv4500 swap into ls swapped 91k1500??

    Alright ladies and gents, I have a 1991 gmc k1500 ext cab short bed I’ve had since highschool originally a 350 700r4 truck that is currently a mild built 5.3 lm7 carbureted hooked up to the 700r4 Well the ten bolt is as on its way out and I had always wanted to 5 speed swap the truck so I...
  6. A

    1991 tbi to 5.3 ls swap

    i have a 1991 c1500 Silverado with the 5.7 atm and I’ve been looking around and doing tons of research on ls swaps but I haven’t been able to find anything about a throttle cable and the cruise control. I’ve read that if I use the 1999 Silverado throttle cable and cruise control cable that both...
  7. A

    Ls swap

    Sorry if it’s been asked a million times but I got a 91 c1500 with the 5.7 tbi with a 700r4 and I’m looking to swap to a 5.3 vortec from 1999-2002ish with the throttle cable and a 4l80e or would it be easier to swap a 4l60e in? I need help knowing exactly what parts I need. I know that I’ll need...
  8. ObsKev

    Engine Bay Squeak Noise?

    FBO/CAM 6.0 Swapped 1991 Silverado. I got a weird annoying noise coming from the engine bay towards the driver side. Super annoying noise it comes and goes. While driving and at idle. I can’t add videos so here’s the link to it. Thanks in Advance https://www.reddit.com/r/LSSwapTheWorld/s/bRgd0FWIW2
  9. M

    Ls swap 4l60 to 4l80 4x4

    I’m currently working on an LS swap in a 1998 k1500. My truck has push button 4x4 and my donor lq4 and 4l80 came out of a 2003 2500 Yukon that was also push button 4x4. I’m new to all this and was wondering if there is a way to make the donor trans 4x4 work with my factory push button? Thanks!
  10. U

    454 swap. Who’s done it??

    Ok, I have been putting my truck off for a long time. After some 75 hour weeks we finally have the funds and time. I love LS motors however this truck is old. I love old trucks and old muscle. While I’m aware the pros of LS swap I want to keep it old (im aware of the irony but it’s my truck so...
  11. M

    What headers did you run on your 4wd obs ls swap?

    I’m working on ls swapping a 92 gmc Sierra k1500 with a motor from an 04 Yukon. I’m curious what headers y’all ran on similar swaps? I’m looking for something pretty much plug n play so I don’t have to do any fab on the exhaust, or not too much at least. Thanks for any info!
  12. A

    Explain to me like I'm 5. How easy is an LS swap?

    1991 GMC C2500 5.7 700r4, I use it exclusively as a toy hauler. It takes my car to the track, and brings poor marketplace decisions home, I do not want to put an LS in it to make 500,000 horsepower. I have no interest in going fast in this old ass truck LOL. Now that we've got that out of the...
  13. E

    LS3 T56 swap

    Hello I have a 1990 GMC K1500, 350sbc, with the mg5 manual. I've been thinking of doing a swap, and trying to get the 6.2L LS3 with a T56 in the truck, but one of the problems I've been running into is finding a way to get the 6spd to match up to a transfer case. I don't know if the t56 is the...
  14. M

    LS donor parts

    Hello everyone, I’m planning on taking a 5.3 LM7 out of an ‘04 Yukon this week and just wanting to make sure my list of needed parts is correct. The motor will be going into a ‘92 k1500 with a 5 speed manual. From my research I’ve gathered I’ll need the following; - Motor, of course - under...
  15. U

    what is everything required to 6.0 swap my k1500

    Hey guys, I recently acquired a truck which I am doing a project on. Its a 1990 K1500 regular cab step side. Im in the middle of prepping for paint, redoing the interior, and doing an entire restoration in the truck. it is a 5 speed manual and has 200k on the clock. It runs great but the perfect...
    • UtOBS
    • Thread
    • lq4/lq9 ls swap nv4500 swap obs regular cab
    • Replies: 6
    • Forum: LSX + Carb Swaps
  16. Chevykid5150

    LS sloppy stage 3 tune needed hp tuners???

    Looking for LS gen3 tune or base tune for 5.3 LS sloppy stage 3 cam. Any sloppy tunes would help me getting close to just run my engine. Hp tunerer file would be awesome. Thanks
  17. H

    99 gmt800 lq4 4l80e and rear end swap into 99 2wd tahoe

    I have a 1999 2500hd Silverado doner truck and a 2wd 4 door 1999 tahoe 5.7l my plans in the spring are to swap the lq4 4l80e and rear end out of the Silverado into the tahoe my question is will the dirty dingo adjustable mounts and the adjustable trans swap mount be enough movement to make the...
  18. Treyes

    Taillights are out

    Hazards work, brake lights work sometimes, but running taillights wont switch on, my column is all broken i dont know if that has to do with anything but ive tried everything else, any advice, recently got my ls swap done but i doubt that has anything to do since everything else works on it
  19. B

    5.7 vortec or 5.3LS?

    Ok so the debate that I’m currently having with myself is this. I bought a truck that I am going to be tearing down and doing a full restoration to fix the Canadian salt road damage. I’m building the truck as a work truck. C1500 ext cab. So towing/hauling once in a while and payload. Already...
  20. A

    Making an external slave work with a Ls?

    Over the past few months I’ve been swapping an lq9 into my 95. Finally got to where I thought I was really close just to bolt up the trans and have the slave cylinder interfere with the oil pan. So now I’m at a crossroads, either swap in a 96+ nv3500, convert mine to internal, or go to a t56...
  21. A

    95 Bulkhead connector on the firewall pin out?

    I can’t seem to find the pin out for the bulkhead. I can find 96+ but nothing before that. I would chase wires from the original harness but my dumbass cut a lot of them thinking I didn’t need them. It’s the last part I have to hookup to my Ls stand-alone harness.
  22. CrystaledJazz

    How would the Odometer work in an LS swap?

    Hey, I'm going to be swapping a 4.8/5.3 into my 89 350 TBI truck. I've been doing a lot of research and theres one thing that i cant seem to figure out. I plan on making everything work like factory but with a newer engine, and that means even the odometer. So I'm wondering how I wire or hook...
  23. E

    ls 6.0 4l80e swap

    hi I'm looking for some help here I have a 1989 chevy Cheyenne I have a 6.0 4l60e in it now but my transmission is blown now and looking to change to a 4l80e but what changes do I need to do to make it work everything on the setup that I have now works fine all I hade to do is set back the trans...
  24. Chevyboi93

    Using factory gauges for LS swap

    Hello, to all my fellow Chevy/OBS lovers out there,I’m planning to swap my 5.7 for a LQ9 in the near future and after a lot of research I feel like I’m going to handle it pretty well BUT I am slumped on one thing and that’s getting my factory gauges to work at least for now until I drop the...
  25. G

    Cheap fuel setup lm7 swap in 91' rcss

    I bought a brand new 96+ Vortec fuel pump and swapped it in from the weak tbi pump. I've done a lot of research on how to go from the stock fuel hard lines to the quick connects on my intake (with return). But with all an fittings added up I'm looking at $90+ just in fittings to go from the...

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