LS wiring harnesses and swap kits for all Gen III and IV engines. The GM LS engine has quickly become the high-performance standard in the performance aftermarket. Small case alternators are 135 amp and lower. There are some mounts which allow for the stock LS air conditioning compressor to be kept … Next install the front bracket using the longest socket head bolt in the top hole and 1 "B" spacer between the two brackets and one "A" spacer between the rear bracket and the cylinder head. Install the other two "B" spacers between the brackets. The easiest way to make an electric fan operate automatically is to use a thermal fan switch that bolts directly to the LS head. At the moment, these trucks are relatively cheap to pick up, and can be found with full power, AC, tilt, etc. Since every LS engine swap is a little different and there are lot of choices to be made, you can use this guide as a reference for ideas and part numbers as you move through the process. This guide will assist you in making a seamless LS engine swap. All threaded holes in the block and cylinder head should cleaned and tapped with a thread chaser. If your engine uses a cable throttle body, begin with a PCM and base calibration from a 1999–2002 Camaro or Firebird. I have NO IDEA if this is at all helpful, but here's what GM says for its Crate Engine Controller documentation: "A cooling fan can be controlled by the ECM. Has anyone played with cooling fan relay control? Air Conditioning Considerations Prior to buying a custom wire harness or doing PCM calibration work, determine if the vehicle will have air conditioning, if electric fan(s) are required when the A/C compressor is on, and if the PCM will be used to control the electric fan(s). While lifting the weight of the compressor. We will make integrating A/C with our harness and the GM control modules simple. If your engine uses an electronic throttle body, begin with a PCM and ba… If your project uses electric fans, begin with a PCM calibration from a vehicle that has electric fans. We have 2 e38 ecu ls2 engine conversions that have been wired to fan output 1 as a relay control switch but fans come on constantly once started. Of most importance is the consideration of electric fan control. These are the RED & BLUE PCM connector pinouts that will cover 1999 to 2002 4.8/5.3/6.0. LS Swap Guide by LSX Innovations INTRODUCTION. Holley and Hooker have partnered together to offer the most versatile and complete LS swap kits on the market so you can install the GM LS engine into your favorite chassis! To install the belt place a 3/8 ratchet and extension into the front of the tensioner and twist down. No more forcing fans on with extra relays. LS engines use a metric M12x1.5 thread pitch for coolant access… Can anybody tell me where the vacuum lines for the heater control valve plug into (inside the car.) For the base of … This bolt comes with a locknut and stainless washer for the rear to keep this locked into place. Bottom line is not enough cooling capacity a long with inadequate fan size. 1970-81. The PCM is sending a ground signal to the relay but the relay is not activating. The user-tunable FAST XFI 2.0 controller carries all of the usual functions for LS operation as well as fuel pump and cooling fan controls. Then go back and torque each bolt to 28 ft. lbs. Both of the bolts are countersunk and thread into the rear plate. Startup guaranteed. Welcome to Part 3 of the LS swap in my 80 series Land Cruiser! On many LS powered cars, the factory engine control unit does a lot more than controlling the engine. 1-7 on axis but not description as to what they relate to. Control is set to turn on a 12 V fan at 100 Deg C (212 Deg F) coolant temperature. I would do it if I were you. Keep in mind I have the Frontrunner System on my car and I am limited to 6.75" of space between the radiator support and the front of the AC clutch cover. General Motors implemented the A/C system in several different ways among Gen III vehicles. then tighten the locknut on the rear to 28 ft. lbs. Tighten tensioner bolt to 28 ft. lbs. When I measure voltage at the relay I get 12v on both sides of the coil. Your harness MAY NOT have a pin in a location I have listed having a wire. No more stalling at a stop or during a low rpm cruise. 1967-69. LS1 Swap 3.45 Dana 44. Direct-fit GM LSx/Vortec harness for 1991-2007 Chevy/GMC Silverado / Sierra, Suburban, Tahoe / Yukon) (1500,2500,3500,Diesel) Our Direct-Fit custom wiring harnesses are true plug-and-play custom built harnesses that are designed specifically for your project utilizing a … Install the smaller rear bracket using 2 "A" spacers between the bracket and passenger. Hi everyone! The vacuum line that supplies the valve on your control on the A/C selector is the only line with no colored stripe. Output Control vs. State: Selects which of 3 outputs are active for any given state. We ran out of time this past fall to get the final tuning done. Most of our swap customers prefer to keep A/C on their vehicle. You can control the fans via simple switch or program the ECM to do it for you with coolant temp and AC compressor or line pressure if your vehicle is equipped with AC. Climate Control Fans Override. All you have to do is type “ls swap mounts” into google to see what I mean. Now install the R4 compressor between the two brackets using the two 110mm bolts with the lock nuts and stainless washers on the rear side. 1982-92. 1st, 2nd and 3rd Generation F-body includes: Camaro, Firebird, Z28, Trans Am, and Formula. A larger clutch will require a slightly longer belt. We wanted to see exactly how cheap we could swap an LS into an older full-size GM car for and what other items needed to be considered during the swap. DD-LS-R4-AC - LS R4 A/C Bracket All threaded holes in the block and cylinder head should cleaned and tapped with a thread chaser. In many cases, if you’re putting MegaSquirt on a car that came with an LS motor, we recommend installing the MegaSquirt in parallel with the stock ECU if you want these features to keep operating. *We recommend leaving all of the bolts slightly loose until all the parts are installed. Next install the top idler pulley. LS power adders; LSSimple water pump manifold for electric water pump set ups; 4L60E automatic transmission adapter; 3/4, 1/2 and 1 1/2 spacer kit for fbody & LSA water pumps; Simple computer bracket and LS friendly fill jug; LSS EGR delete; 6 groove small metal pulley with install ring; Gbody kits; GM Rear disc caliper brackets Doing a LS swap into a "Square body" GM truck is much simpler. All the items listed below are things you will need to consider, research, and plan on having when doing an LS swap. ICT Billet LS Truck R4 A/C Air Conditioner Compressor Bracket Kit SUV LSX AC (LS3 Camaro) LS1 LS3 LS2 LQ4 LQ9 LS6 L92 L99 L33 LR4 Designed & Manufactured in the USA 551585X-3 4.7 out of 5 stars 48 $199.99 $ 199 . * When using small diameter power steering pulley subtract 2" from belt length. Got $1700 for it. *We recommend leaving all of the bolts slightly loose until all the parts are installed. Small case alternator (135 amp and lower)  Gates K061110, Large case alternator  (140 amp and larger)  Gates K061115, Small case alternator (135 amp and lower)  Gates K061098, Large case alternator  (140 amp and larger)  Gates K061105, Truck accessories using Dirty Dingo billet Alt/PS low power steering mount bracket-, Truck accessories using Dirty Dingo billet Alt/PS high power steering mount bracket-, Truck accessories using Dirty Dingo idler relocation bracket-, Dirty Dingo LS1 Corvette Style alternator-power steering bracket-. A/C Compressor. Then go back and torque each bolt to 28 ft. lbs. 1964-77 GM A-body . 99 Fan output 1 & 2 have 0 or 1 as a switch but not sure what the axis represents. Leave all of the bolts loose as shown. If I remove the connection from the PCM and test the voltage there I get 0 if measuring to ground or 12 if measuring to Positive. For more info on LS conversions and what makes our swap kits the best in the industry click here. We make this easy by providing a wide selection of brackets to mount your A/C compressor on trucks, cars, hotrods, etc, with options ranging from GM factory R4, BMW, Ford, Sanden 508, 7176, 708, HT6 and other types of compressors. If you need to control an E-transmission, you can also link the XFI 2.0 to the optional FAST EZ TCU controller. 1967-82 GM F-body . Install the smaller rear bracket using 2 "A" spacers between the bracket and passenger cylinder head using two bolts and stainless washers as shown. 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. LS Swap Masters has served the San Francisco Bay Area and beyond for 30 years. Large Case alternators are 140 amp and higher. In short, the best engine for your LS or Vortec swap is the one you can afford. I did sell the old crate engine. The FAST™ EZ-EFI 2.0® LS Self Tuning Engine Control Kit is the easiest way to get your LS transplant up and running without the complex PCM flashing and harness reworking required with the stock unit. State vs. Desired %: Selects the current state of series/parallel/discrete fan operation based on Desired %. Place the flat aluminum spacer plate that comes with the tensioner between the tensioner and the front plate as shown. Tighten the bolt to 28 ft. lbs. When using small diameter pulleys and test fitting belts, you want as close to 2" between the two pulleys as possible. Fan modules include all of the necessary components to convert from a mechanical fan to an electric fan for the LS swap. A value of 1 means the output is active and 0 is inactive. The two Spal fans are 265 watts at 1168cfm each. These belt sizes are for using a clutch diameter of 4.33". All bolts being installed should be lubed with a light oil or anti-seize on the bolt threads before assembly. We have a module that will send the AC request signal to the E38 ECU and will allow you to run your A/C from the factory ECU. Whether you want to do a complete LS swap, change your suspension, add a custom exhaust system, increase your power with a supercharging system, make your vehicle handle like a dream, or just keep up with more basic automotive repairs, LS Swap Masters can handle it. Thinking of installing air conditioning on your swap? Dave, I will have it on the dyno this spring. Choose your year range below. It now lives in a '68 Biscayne wagon. Made in the USA. Joined: 12/3/2001 Posts: 2379. All bolts being installed should be lubed with a light oil or anti-seize on the bolt threads before assembly. The PCM calibration is specific to each of these implementations. It includes a FAST XFI 2.0 system, an XIM Ignition Module, and all necessary plug-and-play wiring. I?m guessing a/c, coolant temp etc are something to do … Start with the counter sunk bolts first, rear bracket to cylinder head, then the front bracket, and finally the compressor. BP Automotive is the only LS Swap Standalone Harness Manufacturer that offers and fully supports A/C installation and integration with the GM LS EFI systems. The machined end fits inside the pulley. Remote Control: Installing a VPA Remote Start System on Your Vehicle Posted by Jim Brightly on February 5, 2015 at 4:41 pm If you live in an area with extreme weather—like Phoenix, AZ in the summer or Buffalo, NY in the winter—you’ll thoroughly enjoy equipping your vehicle with a VPA Remote Engine Starter from Summit Racing. The harness will ship ASAP with tracking. Tighten all bolts to 28 ft lbs. WoW, nice to finally order a bracket and it fits PERFECT!!! Log in, HOW TO USE AND UPGRADE TO GM GEN III LS-SERIES POWERTRAIN CONTROL SYSTEMS, Proven Stroker Combos for Big-Inch LS Engines, GM Gen III LS PCM/ECM: Electronic Throttle Equipment Guide, How to Remove and Install Gen III LS Engines: Tips and Tricks, Gen III (3) LS 500+ Horsepower NA Street-Racer Buildup, Fuel and Spark Guide for Big-Inch LS Engines, How to Tune Supercharged and Turbocharged LS Engines, The LS Engine Family – Building Big-Inch LS Engines, Gen III LS PCM Conversion Upgrades: Projects, Lessons and Strategies, TUNING FOR SUPERCHARGED AND TURBOCHARGED LS ENGINES, LS Engine: Intro to Turbocharging and Turbochargers, LS: Forced-Induction Support and Auxiliary Components, Piston Guide for Building Big-Inch LS Engines, Induction Guide for Building Big-Inch LS Engines, Gen III (3) LS Production Parts for Performance, Gen III (3) LS 1200 Horsepower, 387-Cubic-Inch C5R Power Guide, GM Gen III LS PCM/ECM: Crankshaft and Camshaft Signals Guide, Camaro and Firebird LS Swap: Chassis and Suspension, LS Engine Rebuilds: Component Preparation Guide, Cylinder Head Options for Building Big-Inch LS Engines, Gen III (3) LS Engine Basics – Getting Started, Intro to GM’s LS Gen III and Gen IV: The Small-Block Chevy Reborn, LS ENGINE SUPERCHARGER INSTALLATION PROJECTS, The Arrival of the LS Engine – Start Your Rebuild, Choosing an LS Engine for Camaro and Firebird LS Swap, LS Engine: Intro to Supercharging and Superchargers, How to Build an LS Engine: Cylinder Block and Rotating Assembly, What You Need to Know About LS-Series Engines, Upgrading to Gen III LS-Series PCM: Air Conditioning Guide, LS ENGINE TURBOCHARGER INSTALLATION PROJECTS, HOW TO BUILD AN LS ENGINE: CYLINDER BLOCK AND ROTATING ASSEMBLY, GM LS-Series PCM/ECM: Comparing Gen III Controllers, LS SWAPS: Accessory Drives and Cooling System Guide, Camaro and Firebird LS Swap: Front-Drive Accessory Guide, Gen III (3) LS Vortec Truck Engine Buildup Guide, Ultimate LS Rectangular Port Cylinder Heads Guide, How to Build an LS Engine: Cylinder Heads, Camshafts and Induction, LS Engine Supercharger Projects: Step-by-Step, Connecting Rod Guide for Building Big-Inch LS Engines, LS Cylinder Head Supporting Components Guide, GM Gen III LS PCM/ECM: Wire Harness Selection Guide, Ultimate LS Cathedral Port Cylinder Heads Guide, Upgrading to Gen III LS-Series PCM: Signal Output Guide, LS Engine Rebuilds: Break-In and Tuning Guide, Firebird and Camaro LS Swap: Transmission Guide, GM Gen III LS PCM/ECM: How to Change the Firing Order, Engine Block Options for Building Big-Inch LS Engines, How to Control Your Gen III (3) V-8 LS Engine, LS: Pre-Installtion Guide for Turbochargers and Superchargers, Firebird and Camaro LS Swap: Fuel System Guide, GM LS-Series PCM: Understanding the Small-Block Generations, HOW TO BUILD AN LS ENGINE: HEADS, CAM AND INDUCTION, GM Gen III LS PCM/ECM: Tuning Software and Equipment, Firebird and Camaro LS Swap: Cooling System Guide, Camaro and Firebird LS Swap: Wiring Guide, 100 Horsepower Anybody Can Install in Gen 3 LS Engines, Camaro and Firebird LS Swap: Initial Start-Up Guide, Upgrading to Gen III LS-Series PCM: Sensors and Inputs Guide, LS Engine Turbocharger Projects: Step-by-Step, GM Gen III LS PCM/ECM: On-Board Diagnostics Troubleshooting, Camaro and Firebird LS Swap: Exhaust and Induction Guide, LS SWAPS: Wiring Harness and Wiring Guide, Crankshaft Guide for Building Big-Inch LS Engines, LS Cylinder Blocks Guide for High-Performance, Camaro and Firebird LS Swap: Engine and Subframe Guide, Upgrading to Gen III LS-Series PCM: Electric Fan Guide, Upgrading to Gen III LS-Series PCM: Cruise Control Guide. 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