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Precision Wiring for GM LS1 & LS6 Engines

The Holley EFI Main Wiring Harness for LS1 and LS6 engines is the gold standard for enthusiasts looking to modernize their engine management. Specifically designed for engines utilizing the 24x reluctor wheel, this harness provides a direct, clean connection for your Holley HP or Dominator EFI system. It is the perfect solution for those who demand reliability and performance from their LS-based powerplant.

Engineered for Excellence

• Tailored Fitment: Specifically configured for LS1 and LS6 engines, ensuring all sensor connectors are perfectly positioned for a clean install.
• 24x Reluctor Support: Optimized for early-model LS engine ignition systems to provide rock-solid timing and fuel delivery.
• Seamless Integration: Fully compatible with the Holley HP and Dominator ECU platforms, unlocking advanced tuning features.
• High-Durability Design: Features heat-resistant wiring and reinforced shielding to protect against the harsh conditions of a high-performance engine bay.

By upgrading to this main harness, you eliminate the common electrical issues associated with aging factory wiring. The result is a more responsive engine, better fuel efficiency, and the peace of mind that comes with a professional-grade installation. Whether you are building a street-legal hot rod or a dedicated track machine, this harness ensures your engine management system functions at its peak. Trust your build to the quality components available at GGCRACING.