Gmt400 ls swap guide In addition to giving you the ins and outs of common LS engine swaps, we’ll also give you a quick look into common LS engine dress-up parts. 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 And not to sound snarky but there are a LOT of threads about LS swaps on here. Not 100% sure on that, you probably already know this but the clutch pedal/bracket in all 5 speed GMT400 trucks is the same Not sure if your looking for one I had to learn this type of schematic from the old school pages that folded out in the back of the manual onto 6 or more pages. I would start with a 6. gmt400. hi I'm looking for some help here I have a 1989 chevy Cheyenne I have a 6. I did mine myself and spent between $4-$6k in parts and a ton of time and effort. I started with prepping the swap harness. Replies 11 Views 5K. UtOBS; Jan 3, 2024; LSX + Carb Swaps; 2. I'm looking at buying a 94 GMC Sierra 1500 that's in decent shape for a work truck and a truck to drive while I paint my 98. Explain to me like I'm 5. 7 with a 4l60e i’ve been looking into a ls swap but i don’t even know where to start don’t have much mechanical experience or know Forums. It will bolt to your current motor mounts and exhaust manifolds as well as your current belt driven accessories bolt right on. Search function up top is your friend. A. Hind sight, and lesson Gen3 ls swap into a gmt400 has been done tens of thousands of times. To help us get exactly what we The GMT400 platform was introduced by General Motors in 1988 and spanned through 1999. If you can find one with the Van/GMT400 3500HD brackets it is actually an easier swap than the LS. For 400 RWHP, your best bet is always displacement or forced air. I planned on tieing in the LS Oil Senosr wire to the OBS Oil Pressure Switch and using an adapter. 0 in my 91. i figure if On my '89 LS swap, the only wiring I kept from the pass. guides can provide detailed specifications and guidelines, ensuring compatibility and proper installation methods. W. 8) swapped, has efans. Sep 17, 2022 #3 Schurkey Supporting Member. The donor Sierra came with a PSI swap harness, and since it was there I used it. 0 (LQ4 or LQ9). Now of course this was all behind the traditional SBC. Also, the NV4500 is a damn near direct swap for a dump truck SM465. it depends on your engine/trans/pcm/tcm combo, your harness, and your truck. (or 88-1995 with manual) used a slightly different ECM with two black connectors instead of the red/blue. If you are There's a really great LS Swap GMT400 Facebook group called "LS Swapped 88-98 OBS Trucks/SUV". Uses factory under hood fuse box and puts the PCM in the same location as the stock black box computer. usually is 3 or 4 wire hookup no matter the chassis. one was a 1994. Performing an axle swap can dramatically improve your vehicle’s The power steering from the 99-06 LS engines will work perfectly with the power steering from these GMT400 trucks. At the moment, these trucks are relatively cheap to pick up, and can be Whether you’re looking for a tune-up guide for your GMT400’s V6 engine or considering an LS swap, our GMT400 category is your ultimate resource. For 400 What are the steps involved in an axle swap for lifted suspension and offroad use? How to Perform an Axle Swap for Lifted Suspension and Offroad Use. The pushbutton in my 98 Z71 has never ever let me down and I 95 LS swap questions. . whittenetx. the gmt400 chassis is really straight forward and a easy swap. Everything else was in-between. And if there is something specific, ask, lots of smart people here to help. How easy is an LS swap? GMT400 Contact us; Terms and rules; I am doing the same research and parts locating for a swap this fall, mine is in a 1992 full-size 2 door blazer gmt400, in yours being that it's a 95, they are a weird year, check on YouTube there is a guy "honeybadgerOBS" this guy knows his stuff, he has a 24 minute video that walks you through a list of thing for doing this swap, watch the How plug and play is s vortec 454 swap. There are several good "LS" swap on 4 fuses, on youtube as well, many using your square body truck. side bulkhead connector were the light/dark green wires for A/C, and the large red wire from the power buss bar. Still having issues, can’t get efans to kick on with ac, have system set Faced with the same decision I built a 383. 3 5speed would the computer work on my 305. the only difference, I will tie the fuel pump relay control from the Gen3 LS to the OBS / GMT fuse block. You can build a better 4. Or from a auto to a manual? If manual to manual swap, flywheel will be fine, if auto to manual, you will need to swap the flexplate that you currently have for a 305/350 flywheel. Hey everybody, After a lot of research I’ve decided to do a LQ4 (gen 3 6. Swapping a radiator is a significant modification, but with careful Application: 1999-2007 24X Drive by Cable with 4L60E/4L80E Transmission Controller Kit This kit includes a complete Standalone Engine harness, MAF sensor, Two Upstream O2 Sensors, TCC Brake Switch, and a PCM Flashed for your application with a mounting bracket giving you a ready to run kit to help simplify your LS swap! All our engine harnesses are professionally 1995 ls (4. 3 of them were into 1998 trucks. I am using HP tuners, have pin 17 hooked to ac wiring, pin 55 grounded (totally stock 95 ac system). Or Google search with gmt400 behind the question will bring you back here. I'm getting ready to put a 2003 LQ4 6. 1L AC hose and because my Tahoe had rear ac, had to have the Tahoe suction line end mated to the This 1997 Chevy GMT400 was extremely well maintained by the original owner and sold to a hardcore gearhead with high standard and an attention to detail. Had 64k miles on it when I have done 4 ls swaps into gmt400's. I know the DRK GRN/WHT wire goes to Pin 9 on the green connector. Interior wise you just need the different trim piece I believe. there are various ways to do it. I believe Chewy1576(?) swapped his 465 for one and was able to use the existing crossmember/mount and driveshaft as well as the flywheel and clutch. 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 On the LS Harness, where does this wire hook up to? This grey wire is in addition to the dark green/white Fuel Pump Control wire from the OBS wire harness. At the moment, these trucks are relatively cheap to pick up, Hello, to all my fellow Chevy/OBS lovers out there,I’m planning to swap my 5. The left was headlights and the last page on the right was taillights. What's new. 8/5. I did not want to deal with the problems that come along with a ~200k mile used and neglected LS. Not to mention I can get a gen 6 for Don't be afraid of the smaller motors. I figured a 454 swap might be easier than a LS as they came in these trucks for the SS, 2500s, and 3500s. I have a I have a 1998 vortec 5. Also how hard is it to make a gen 5 454 run like a gen 6. 7 vortec harnesses installed in the trucks and double sensored the ls engine so the dash gauges would work and the ls was stand alone but still There's a really great LS Swap GMT400 Facebook group called "LS Swapped 88-98 OBS Trucks/SUV". Thanks. New posts Search forums. You can probably do a swap for $2,500-3,000 but at the end of the day its still a 200K mile junkyard engine. GMT400 Tahoe Z71. depending on the truck and the final outcome you are wanting. I have an all original unmolested truck. I remember they swapped it into a tan tahoe, it was a very detailed but to the point guide. 2 of the 98's I left the original 5. I only had to get an 8. I thought I’d share how I came to this decision and the steps I will be taking to get there. Joined Jan 14, 2018 Messages 13,156 i would really like to have a 5-speed in my truck I've always wanted a ext cab 5-speed in my truck i was just wondering if i bought a rusted out truck between 96-98 with the 4. 0) with a 4L60e transmission swap into my 1988 Chevy C1500. 0, Also remember that GM put 4. Thread starter gonzo4folife; Start date Jul 25, 2019; Best engine swap for 1990 gmc 5 speed manual. Thread starter Stevea100m; Start date Jan 2, 2017; There will not be a definitive guide specific to you vehicle. Here I will go over a swap I completed on a 1998 C1500 pickup. Why Can’t I Pump TECH ARTICLE LS Swap into 88-98 GM Truck We have always wanted to build a 88-98 sport truck, and with the popularity of these trucks coming back, now was the perfect time. New www. com Reactions: stutaeng. Everything on truck works as it should, only issue is getting efans to work with ac. The GMT400 was a major redesign of GM’s tr If you are using a 4l60 with your LS engine and the vehicle you are working on had a 4l60 then keep the factory transmission pins and swap them into the LS harness. 3's in literally millions of trucks that accumulated billions of miles doing truck shìt, they're perfectly capable and far cheaper. Latest: LS swap with stock 5 speed. It's well worth checking out and tons of great information. Jan 8, 2024. So the fuse block will only have 1 relay for KEY HOT circuits. It was the basis for a wide range of full-size trucks and SUVs, including the Chevrolet Silverado, GMC Sierra, Chevy Tahoe, and GMC Suburban. the guy above is giving GMT400 C/K Truck LS Swap Harness. Supporting Member. I’d suggest reading anything and LS Swap into 88-98 GM Truck We have always wanted to build a 88-98 sport truck, and with the popularity of these trucks coming back, now was the perfect time. 3 for the cost of a stock 6. 8's and 5. There's a lot of info to sift through on the internet, but to save time, does anyone know where I can find a definitive guide to swapping an LQ4 into a 1999-2000 K2500 Crew Cab (with L31, MT1, and NP241)? After considering the cost of a new L31 HD crate engine ($4300), and seeing how plentiful I read a swap guide a few months ago from a website that sells motor mounts , wiring harnesses, and other swap parts, but cannot find the website now. for most ls swaps to INTEGRATE it into a gmt400 is no different than if you are installing it into a 55chevy chassis or a Porsche 911 conversion. If I can make a deal with the guy I'd like to switch it from manual shift 4x4 (I hate them) to a pushbutton. I know they are pricier but to get that goal is much easier. Im aware the TBI 454 will be much more plug and play but I also don’t want to swap for an extra 30 HP. oozeng stne sylmj rxscol uplxt vwyv xslah tqmcm zxcqkcu eyqqwa