LT1/LT4 (1992-97) GEN II Standalone Wiring Harnesses for LS Swaps

High-Performance LT1/LT4 GEN II Wiring Harnesses for LS Swaps

Upgrade your LT1/LT4 (1992-97) engine swap with high-quality standalone wiring harnesses, designed for seamless integration with 4L60E, T56, TH350, and 700R4 transmissions. These harnesses simplify your Oldsmobile LS swap by providing a plug-and-play solution for LS conversions, eliminating unnecessary wiring and ensuring optimal performance. Whether you're working on a classic restoration or a high-performance build, these harnesses support the reliability and efficiency of modern engine management systems.

Engineered for durability, they come pre-terminated with labeled connectors for a hassle-free installation.

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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LT1/LT4 (1992-97) GEN II Standalone Wiring Harnesses for LS Swaps

High-Performance LT1/LT4 GEN II Wiring Harnesses for LS Swaps

LT1 w/4L60E

LT1 w/T56/TH350/700R4

92 - '93 LT1 W/ 4L60e Standalone Harness

92 - '93 LT1 W/ T56 Standalone Harness

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