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Equip your Chevy with a reliable LS w/6L80E/6L90E standalone wiring harness for a seamless engine swap. These harnesses are engineered for LS7, LS3, LS2, and L99 engines with 58X reluctor wheels, ensuring precise compatibility with modern 6L80E/6L90E transmissions. Designed with premium materials and featuring plug-and-play functionality, these wiring solutions simplify installation while maintaining the factory fit and finish.
Whether you're upgrading your classic Chevy for performance or restoring it with modern efficiency, our harnesses deliver outstanding performance and reliability.
These harnesses are designed for LS7, LS3, LS2, and L99 engines using a 58X reluctor wheel configuration.
Yes, they are fully compatible with both 6L80E and 6L90E transmission models.
Yes, they work seamlessly with factory ECUs designed for LS (58X) engine configurations.
Yes, they are compatible with electronic throttle control systems used in LS engines.
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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Contacts
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