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Upgrade your Monte Carlo or G-Body vehicle with our premium LS swap parts, meticulously engineered for an efficient engine conversion. Our range includes LS swap standalone wiring harnesses crafted in the USA using high-quality wire and various loom options to suit your needs. Our PCM tuning service ensures your engine and transmission are finely tuned for optimal performance. Additionally, we offer engine and transmission mounts, Dakota Digital gauges, American Autowire chassis harnesses, accessory brackets, and oil pans.
From Gen 3 1999-2007 LS Vortec Engine Controller Kits to GM G-Body motor mounts and Monte Carlo steel gas tanks, our extensive inventory ensures you have all the components necessary for a successful LS swap.
Explore our key products to complete your Monte Carlo or G-Body LS swap project:
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 constructed from Brand New GM Delphi Connectors and TXL (Polyethylene Cross Linked) High Temperature Wire to GM Specifications. All Harnesses are 100% Quality Inspected prior to shipping.
Choose Engine Year for your Wiring Needs!
- 1999-07 LS/Vortec GEN III 24X Engine
Adjustable LS Swap engine mounts for 1975-79 Nova, 1982-92 Camaro, & 1978-88 Monte Carlo for installing the 1997-2013 Gen III/IV LS series engine
Classic Update kits are designed for projects that require more circuits than would have been available in an original chassis harness. Each kit includes all the basics needed to rewire a vehicle from headlight to tail light, and will accommodate popular add-on items such as electronic fuel injection, aftermarket gauges and common supporting modifications. This harness includes. An updated ATC fuse panel and fuses, along with modern GXL wire throughout. Wire functions are labeled every 3 to 5 inches. Pre-built dash harness and our exclusive gauge cluster disconnect system for use with stock or aftermarket instruments. Engine and front light harness with extra-long leads for custom routing and updated engine and transmission combinations. Original-style bulkhead connectors included. Six-way power accessory plug can be used as a convenient power source for aftermarket accessories. Rear body wiring with extra-long leads allows for custom routing. 175 amp mega fuse kit with 6 gauge charge cable to support a high output charging system and internally regulated alternator. Original-replacement connectors, terminals and lamp sockets. Headlight switch with 26 amp internal circuit breaker and new floor dimmer switch included. Dash harness includes a connector for the 69+ GM steering column connector. A mating connector and terminals are included for easy adaption to popular late model columns. Gauge cluster printed circuit board connector and terminals.
Custom Dash Insert For Mounting Your Holley 6.86", Holley 7", or Haltech IC7 Display Screen. Also Available in Blank for a Clean Mounting Plate for all other Aftermarket Gauges!
An LS swap in a Monte Carlo or G-Body vehicle provides numerous benefits, such as increased horsepower and torque, better fuel efficiency, updated engine management systems, and improved reliability. Additionally, LS engines are renowned for their durability and the wide availability of aftermarket parts, making them a popular choice for engine swaps.
Yes, customization options are available to meet specific engine and vehicle requirements. This can include adjustments for harness sensor lengths, additional connectors, or modifications for unique sensor configurations. Contact PSI Conversion for details on customization.
The installation process for an LS swap in a Monte Carlo or G-Body vehicle may differ slightly based on the model year due to variations in chassis design and original equipment. PSI Conversion offers detailed instructions and support to ensure a smooth installation, regardless of the specific model year.
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Looking for an Affordable, In Stock, Plug and Play wiring harness for your LS Swap? PSI sells Standalone Wiring Harnesses for GM Gen II, III, IV, & V LS/LT based engines and transmissions. These harnesses include the Gen II LT1/LT4, Gen III (24x) LS1/LS6 and Vortec Truck Engines as well as Gen IV (58x) LS2, LS3, LS7, & Vortec and GEN V LT / ECOTEC3 Engines. All PSI Harnesses are Made in the USA. In addition to wiring harnesses, PSI carries Holley Products, Vintage Air A/C, Dakota Digital Gauges, HPTuners and PCM programming, Fuel Pump Kits, Engine Sensors, Extension Harnesses, Replacement GM connector pigtails and a complete line of hardware to complete your conversion needs!
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2029 Route 88
Brick, NJ 08724
ph. 732-276-8589 Mon-Fri: 8:00am to 6:00pm ET
customerservice@psiconversion.com
sales@psiconversion.com
techsupport@psiconversion.com