ECU & Wiring Harness LS1

The Holley ECU & Wiring Harness LS1 is a complete engine control solution designed specifically for LS1 engine swaps and modern LS engine conversions. This product is ideal for automotive enthusiasts and professional builders who are working on high-performance LS installations. It simplifies the process of integrating an LS1 engine into various vehicles, including classic muscle cars and street rods.

This system combines a factory-compatible ECU with a comprehensive wiring harness that connects all necessary engine components, such as sensors, fuel injectors, and ignition coils. The harness is designed to eliminate guesswork by providing labeled connectors for easy installation. Holley's engineering ensures that the system is compatible with standard LS1 engine bay sensors while allowing for common aftermarket modifications.

LS engine swap enthusiasts will find this kit particularly beneficial, as it removes the need for manual engine bay harness fabrication, saving time and reducing the risk of electrical issues. This plug-and-play solution allows builders to focus on their projects without the hassle of custom tuning software or proprietary diagnostic equipment, making it an excellent choice for performance builds.