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Simplify your LS engine swap with our LS 24X standalone wiring harnesses. Designed for Gen 3/4 LS1, LS2, and LS3 engines, these harnesses are compatible with 4L60E, T56, TH350, 700R4, and E40 configurations. Tailored for Chevy full-size cars, they feature plug-and-play designs that ensure quick installation and seamless integration.
Whether you’re using drive-by-cable or drive-by-wire throttle setups, these harnesses provide everything you need for a clean and professional installation. With high-quality components and detailed instructions, they’re ideal for restoring classics or building modern performance machines.
The “24X” refers to the reluctor wheel pattern used by Gen 3 LS engines, ensuring compatibility with certain ECUs and setups.
Yes, specific models are designed for drive-by-wire configurations and include connectors for throttle bodies and pedal assemblies.
These harnesses support a variety of transmissions, including 4L60E, T56, TH350, 700R4, 4L80E, and TR6060.
Yes, specific harnesses are available for EV1 and EV6 injector setups, depending on your engine configuration.
About
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
Post sale tech support:
techsupport@psiconversion.com