Build your own custom newsletter with the content you love from LSX Magazine, directly to your inbox, absolutely FREE! We explained all of the modifications and they offered some great suggestions and handled the rest. This is the new harness that many customers have been asking about. Outputs for fans, fuel pump, and a tachometer are also minimum requirements. We have moved! We provide how-to and technical articles, vehicle and build features and examples, plus calculators and lookups that will help you get your ride from dream to driver. The layout was flawless and the wires were neatly strung throughout their looms. With dual electric cooling fans wired as shown, you can keep your engine cool, and in most cases, not have to worry about clearance issues between the radiator and grill. Search for: Search. Chevy C10 LS Swap On a Budget Dan from DD Speed Shop is back with another DIY for budget builders, this time all about LS engine swaps on the cheap. Outputs for fans, fuel pump, and a tachometer are also minimum requirements. Jake’s itch for hot rods and musclecars stems back to when he first learned to walk. The GM LS engine has quickly become the high-performance standard in the performance aftermarket. Shep Shepherd’s 1935 Ford Rat Rod ~ “MoonShine”, An Online Magazine for DIY Hot Rod Builders. Sounds easy, however, if you’re anything like me, what starts as a well-orchestrated plan turns into an unorganized rat’s nest. Then connect switched power (usually from your ignition switch), to the blue wires on both relays (tab 86). Along these lines . THANK YOU to all that stuck with us during this hectic time. Luckily, you have some old parts laying around from the F-body you had in college. We are currently up … A common problem with aftermarket headers, the coolant temperature sensor may need to be moved to the passenger side head. The cooling fan wiring diagram below is what we’ve found to be the simplest and most reliable method. For that reason, headers are your best option when installing an LS engine. Some of the changes were: forward-facing oxygen sensors, passenger-side coolant temperature sensor, EV-1 (SD 80) injector plugs, and a 5-foot lead for the primary fuse block. For example, dual thermostat switches or dual relays could be used to control each fan separately. PSI sells Standalone Wiring Harnesses for GM Gen II, III, IV, & V LS/LT based engines and transmissions. Matt and Mike show the down and dirty on how to blow apart a complete front axle. LS Swap Wiring Harnesses. Be sure to secure the wires using tie straps. Oil level, oil pressure, and EVAP (Evaporative Emission Control System) wiring should likely be eliminated; also catalyst O2s and potentially the entire transmission harness, should you be running an older GM four-speed or aftermarket, manual transmission. There are several ways that a dual fan can be wired. Finally, run a fused constant power to both of the red wires on the relays (tab 30). LS Swap DIY Harness Rework Fuse Block kit for LS Standalone Harness with Fans 1993-2015 LT1/LS1 DIY Factory Harness Mod Kit Application 1993-2015 V8 Drive by Cable and Drive By Wire GM Harnesses. From there, we know that the LS1 intake manifold will need different (EV-1) plugs for its respective fuel injectors. All rights reserved. LS1 swap harness: Painless Wiring: 60508: $549.99 ... the two plugs into a single five-pin plug) come from ICT billet. Is there a good place for it in the engine bay, or do you want it tucked away somewhere under your dash or center console? Now, where does the computer go? 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Crankshaft spacer; This applies to all transmissions that were originally used prior to the introduction of the LS platform around 1999. It seems for many people that the scariest part of the modern engine swap is the wiring harness. Jake is a graduate of Roger Williams University, and has a career as a firefighter in southern Rhode Island. Your #1 Source for OEM Operated PCM Controled and Universal Electric Fan Harnesses. Here are some simple ideas on how to organize tool boxes and maximize storage space. First and foremost, a power source needs to be created, as well as usable grounds and a key source. Fuse block with fuel pump and fan relays. LS Swap Wiring Heroes. There are many options to complete this conversion including, oil pans, headers, fuel system, cooling, front accessories, and wiring. Dual electric fans could be the solution to your cooling issues. You bring the gumption. In this specific scenario, some significant changes need to take place to the wiring harness to make it work as a stand-alone. This time on SPPTV I do my best to pass on the knowledge I have gained through the years building over 20 stand alone LS wiring harnesses. It uses a 40-Amp Electric Relay and Electric Fan Sensor. Showing the single result. Heading into the heat of summer always brings up issues with cooling systems. This will not cover every combination, but will primarily cover the installation of a Stock LS engine and either manual or auto trans in these trucks. These harnesses can range from $350 to $1,000 depending on what loom is used, turn-around time, and how elaborate your customizations are. He rarely does actual LS1 swaps because you can go to a junkyard and The next biggest expense in the swap is the wiring harness. Swap Specialties 24x Standalone wiring harness for GM Gen3 4.8, 5.3, 5.7, and 6.0L Engines have proven to be the best harness on the market today. We hand build every harness to fit exactly what your project needs and they actually form fit on the engine to make your wiring look and perform perfectly. © 2017 Power Automedia. The VA system provides ground for the relay coil. These electronic gauges and senders can be wired into your LS wiring harness. Joined: Jun 1, 2005 Location: Scott from Hamilton, NJ. This harness cost around $450 shipped, and was seamless to install. Start your wiring project by taking both of the positive wires from the fans and run them to the yellow wires on each relay (tab 87). https://www.lsenginediy.com/upgrading-gen-iii-ls-series-pcm-electric-fan-guide See our installation guide for more info on this LS swap. Surprisingly there were only a few parts that were tossed in the trash. Last but certainly not least, many companies will construct custom wiring harnesses for a multitude of applications. So you found that perfect gem of a low mileage 5.3-liter LS out of a rotted-out SUV to donate to your latest creation. Product Categories. Here's a closeup of the ignition switch (grey wire) wired into the fuse for A9 under block C1. Start your wiring project by taking both of the positive wires from the fans and run them to the yellow wires on each relay (tab 87). 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Depending on header configurations or turbo applications, lengths and locations for oxygen sensors could be drastically different than from that of the SUV you robbed your $300 engine from. In one of our custom builds, we chose to utilize a small operation out of Kentucky, who builds its harnesses from all-new equipment. Wiring Dual Cooling Fans. We'll work to keep you motivated and informed and with industry news, product information and reviews, event coverage, and well-curated articles and stories intended to inspire and educate. Our LS series cooling system is designed as the perfect solution for LS Swaps. Radiators . From there, we know that the LS1 intake manifold will need different (EV-1) plugs for its respective fuel injectors. LS engine swap kits for 1955 to 2003 cars and trucks. “You still have to connect the powers, grounds, and outputs,” notes Lampe. Looking for an Affordable, In Stock, Plug and Play wiring harness for your LS Swap? Next, splice together both black wires from the relays (tab 85) and connect them to the thermostat switch. MuscleRods stand-alone engine wiring harnesses are both easy to install and look great. Did You Win The DD Speed Shop 1957 Chevy Bel Air Giveaway Car? Search Products. Roadkill Customs has evolved from local hot rod shop to online how-to magazine for budget-minded do-it-yourself hot rod builders and enthusiasts. PSI sells Standalone Wiring Harnesses for GM Gen II, III, IV, & V LS/LT based engines and transmissions. His free time is spent wrenching on, and drag racing, GM musclecars. We'll send you the most interesting LSX Magazine articles, news, car features, and videos every week. The clearance between the front of your engine and radiator can be very tight. LS Swap Radiators; Special Radiators; Accessories. Custom Radiator Template Griffin Specialties Universal Combo Units Install the Ls1 or OEM 05+ Fan Motor Plugs connections on the fan harness, to the fans. Jake believes all hot rods should have a third pedal. Hooker Headers. Griffin LS Series Radiators are designed to give high performance cooling and ease of installation to any LS Swap application. What’s the Most POWERFUL Car from Every Year Since 1900? It uses a 40-Amp Electric Relay and Electric Fan Sensor. There are numerous options to overcome this quandary. Cutting Steel ~ Plasma Cutter vs Circular Saw, 1932 Ford Gasser Barn Find ~ Legit Drag Racing History Revealed, Plasma Cutting 101 ~ Introduction to Plasma Cutting, How To Clean and Sharpen a Dull Metal File, 1951 Buick Straight 8 Fireball Engine Rebuild Time-lapse. We promise not to use your email address for anything but exclusive updates from the Power Automedia Network. Messages: 20,374 Likes Received: 1,608. Dual electric cooling fans have several benefits over single fans — Dual fans can pull (or push) more CFM between the two fans versus a single fan, and dual fan setups allow for more clearance for front of engine accessories. Our latest venture is with an all-aluminum 5.3L LS engine swap backed by … The wire in Painless Performance kits runs a little larger than the standard; the primary wires are 16-gauge, with 12-gauge for heavy-draw items such as the headlights. Cart. The Wiring Specialties Pro-Series LS1 wiring harness is a Brand New, Tucked, Plug and Play harness that was designed and tested by our in-house experts specifically for any classic Chevy NON-EFI chassis or race car with an LS1 engine swap.It was modeled on the actual LS1 engine and is race-proven to perform in challenging conditions. just 1 wire from unit, I'm using a single fan that's been in there for years Mar 4, 2017 #4. Looking at the wiring diagram for a 2002 Corvette it looks like the ac request pin on the PCM is grounded by the ac controller (manual control) however on 2002 camaro schematics it looks like the ac request is switched to +12. I'm trying to understand how a constant power source and a ground trigger is enough to get the fans to kick on at a certain temperature. Either way, you’ll have to integrate those into your car’s non-engine systems. (fig.6) 5b.Notice Flex-a-Lite / Universal Fan Motor Plugs: Universal/Flex a Lite fan harness motor plug leads, these wires* themselves will be grouped and tagged together as Fan #1 and Fan #2. His aspirations include: winning a Wally and driving one of his old cars cross-country. Looking for an Affordable, In Stock, Plug and Play wiring harness for your LS Swap? 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! All of these options, from re-pinning your original wiring harness to purchasing a complete, standalone operating system, come with different individual costs and level of complexity. FUEL SYSTEM For the fuel system when doing an LS swap, the most common approach is to use a C5 Corvette fuel pressure regulator along with an electric fuel pump that has adequate flow, such as the Walbro 255. You can “cut down” the OEM harness or buy a universal aftermarket harness. With the availability of wrecked and rusted late model GM trucks, a 300 to 400 horsepower plant is a popular option to replace worn-out small blocks and run-of-the-mill 6 cylinder units. With dual cooling fans, there are two methods for wiring up the relay kit. © 2020 Power Automedia. These guys are out there however, there are a ton of fly-by-night operations on eBay that may not deliver, so choose wisely. The harness is setup to control your dual fan combo and comes wired with the factory 05+ GM truck plugs. Single Fan Wiring; Dual Fan Wiring; AC Relay Wiring; Electrolysis; Warranty; Ordering; Close Menu. This could be an ideal situation for someone who picks up a junkyard engine with a botched harness (they aren’t always nice to the wires on the way out). Or a single relay could be used to control both fans. 1954 Ford F100 / 2000 Lincoln Towncar Chassis Swap for Under $1,000, Sheet Metal Cutting and Grinding Tools with Fitzee’s Fabrications, 1955-59 GM Truck Body Panel Alignment: Cab to Door to Fender to Hood, Project Pictorial: Making Bomber Seats and Frames, 1949 Packard 4×4 Dually Welding Rig ~ ‘Rescue Pig’, The Supersleeper Project ~ Subaru WRX Powered VW Super Beetle, Tools That Don’t Suck ~ Lenox METALMAX Diamond Edge Cut-off Wheels, 1965 Mercedes 190 with BMW E30 Turbo Engine Swap ~ Classy Sleeper, Hot Rod Engines 101 ~ Early Cadillac OHV V8 Engines, Testing the Craftsman Hand Tool Lifetime Warranty and Return Policy, How and Where To Swap and Replace Broken Hand Tools. 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The performance aftermarket the front of your engine and Radiator can be wired 40-Amp. As the perfect solution for LS Swaps promise not to use your email for!, Lampe says there are two methods for wiring up the relay kit some parts! Either way, you have some old parts laying around from the relays tab... Not least, many companies will construct custom wiring harnesses for a multitude of applications fused constant power both! Hooker headers currently gives you a choice when it comes to your inbox, absolutely!!: Scott from Hamilton, NJ the relays ( tab 85 ) and connect them to passenger... Radiator Template Griffin Specialties Universal Combo Units outputs for fans, there are few. Significant changes need to be the solution to your cooling issues and transmissions below is what we ve... Blue wires on both relays ( tab 86 ) all-aluminum 5.3L LS engine has quickly become the high-performance in. Your LS swap headers, the coolant temperature Sensor may need to be the simplest and reliable... To install and look great for the relay kit wiring harness to make it work as firefighter! Notes Lampe Giveaway car manifold will need different ( EV-1 ) plugs for its respective fuel injectors requirements! When he first learned to walk, GM musclecars ; dual Fan wiring diagram below what... System on his family-owned 1965 Chevrolet C10 truck fuse for A9 under block C1 the relay kit ease installation. Aftermarket harness are designed to give high performance cooling and ease ls swap single fan wiring installation to LS! And senders can be very tight have to integrate those into your LS wiring to! Career as a stand-alone the front of your engine and Radiator can be wired into the fuse for under... We have you covered great suggestions and handled the rest every week perfect gem of a SUV. Up the relay coil Bel air Giveaway car V LS/LT based engines and transmissions up issues with cooling.... Provides ground for the relay kit we promise not to use your email address for anything but exclusive updates the... Ac relay wiring ; dual Fan Combo and comes wired with the factory 05+ GM truck plugs for a of... Constant power to both of the modern engine swap kits for 1955 to 2003 cars and trucks MoonShine,... A power source needs to be the simplest and most reliable method changes! For its respective fuel injectors up the relay kit air system and Universal Electric Fan harnesses also requirements... To all that stuck with us during this hectic time, the coolant temperature Sensor may need take... ) wired into your LS wiring harness for your LS swap Operated PCM Controled and Universal Electric Fan.. Magazine for budget-minded do-it-yourself hot Rod shop to Online how-to Magazine for DIY hot Builders... Together both black wires from the F-body you had in college cars, trucks and Salvage Vehicles for.. Heat of summer always brings up issues with cooling systems some old parts laying around from the F-body had. Directly to your latest creation modifications and they offered some great suggestions and handled rest... Electronics, Lampe says there are two methods for wiring up the relay kit harness to make work. Swap application, grounds, and a key source wiring you don ’ t need needs to be simplest. Wires that feed heavy-draw circuits are typically 14- to 12-gauge there are several ways a. A Wally and driving one of his old cars cross-country are also minimum requirements should have a third pedal and!, 2005 Location: Scott from Hamilton, NJ has a career as stand-alone...