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PSI Wiring Harnesses

Premium LS & LT Swap Standalone Wiring Harnesses for Gen 2, 3, 4, and 5 Engines

Upgrade your vehicle’s performance with our premium LS swap standalone wiring harnesses, designed for a variety of engine generations including GEN 2, 3, 4, and 5. At PSI Conversion, we specialize in providing top-quality wiring harnesses that ensure a perfect fit and optimal functionality for your LS swap projects. Our products cater to a wide range of configurations, from LS/Vortec (1997-2007) (24X) Gen 3 to LT1/LT4/L86/L83 (2014+) Gen 5 engines.

Made with high-grade materials such as GM Delphi connectors and TXL high-temperature wire, our harnesses are built for durability and reliability, ensuring a seamless and efficient conversion process for your vehicle.

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Click on the Video to learn how to Identify Your Engine!

                                         or

Click Here to use the LS Vin Decoder to Identify Your Engine

                                        or

If You Aren't Sure of what Engine you have, CLICK HERE, for a Component ID Guide

Use the Information below to help identify your Engine Generation

GEN V

GEN IV

GEN III

GEN II

  • 2014+ Direct Injection
  • High Pressure Fuel Rails below Intake Manifold
  • LT1, L83, L86, LT4
  • 2014-2018 Corvette 6.2
  • 2016-2022 Camaro 6.2
  • 2014-2024 Silverado 5.3 6.2
  • 2007-2014 LS3, LSA, L96 etc
  • Gray Crank Sensor
  • Cam Sensor in Timing Cover
  • 4 Bolt 6 Pin DBW Throttle Body
  • Plastic Intake w/ Fuel Rails
  • EV6 Fuel Injectors
  • 2006-2013 Corvette 6.0 6.2 7.0
  • 2010-2015 Camaro 6.2 7.0
  • 2007-2014 Silverado 4.8 5.3 6.0 6.2
  • 2007-2009 Trailblazer & SS 5.3 6.0
  • 2015-2019 2500 Silverado & Van 6.0
  • 2006-2014 CTS-V 6.0 6.2
  • GM Crate 2007 2024 5.3 6.2
  • 1997-2007 LS1, LS2, LQ4 etc
  • Black Crank Sensor
  • Cam Sensor at Rear of Engine (LS2 in Timing Cover)
  • 3 Bolt 8 Pin DBW Throttle Body (LS2 6 Pin)
  • 3 Bolt DBC Throttle Body
  • Plastic Intake w/ Fuel Rails
  • EV1, Multec, or EV6 Fuel Injectors
  • 1997-2005 Corvette 5.7 6.0
  • 1998-2002 Camaro 5.7
  • 1999-2007 Silverado 4.8 5.3 6.0
  • 2001-2006 Suburban 5.3 6.0
  • 2003-2006 Trailblazer & SS 5.3 6.0
  • 2004-2006 GTO 5.7 6.0
  • 2004-2005 CTS-V 5.7
  • 1992-1997 LT1 5.7
  • Oval 2 Blade Throttle Body
  • Aluminum Intake
  • EV1 Fuel Injectors
  • Camaro 1993-1997
  • Corvette 1992, 1993,1994,1995,1996
  • Caprice 1994,1995,1996