Product Description
BP Automotive LS Swap DIY Harness Rework Fuse Block Kit | Standalone LS Wiring System
Complete Fuse Block & Relay Solution | Supports Fans & A/C | 1993–2024 Port Injection EFI
Take control of your LS swap wiring with this DIY Harness Rework Fuse Block Kit from BP Automotive. Designed for standalone LS wiring systems, this kit provides a clean, professional-grade solution for powering and controlling your engine, transmission, fuel system, and cooling fans. Built using OEM-quality components and TXL wire, this kit delivers reliability and durability comparable to factory harnesses while giving you the flexibility to customize your build. Ideal for LS swaps in street cars, trucks, hot rods, and custom applications, this system simplifies wiring while maintaining a clean and serviceable layout.
Key Features & Benefits
- Complete Standalone Fuse Block System – Provides power distribution and control for engine, transmission, fuel pump, and cooling fans in LS swap applications.
- OEM-Grade Construction – Built using TXL wire and premium connectors from Aptiv (Delphi), Bosch, Molex, Kostal, and Yazaki for maximum durability and reliability.
- Integrated Cooling Fan Control – Includes dual fused fan relays (30 amp each) for reliable cooling system operation in performance builds.
- Plug-and-Play Fan Compatibility – Pre-wired for LS1/LT1/TPI fans, while also including pigtails for easy integration with aftermarket fan setups.
- Professional Fit & Finish – Includes OEM-style fuse block with labeled lid, splash guards, and detachable mounting bracket for a clean, weather-resistant installation.
Supported Applications
- Fits 1993–2024 Port Injection EFI Systems
- Compatible with LS-based engine swaps using traditional port fuel injection systems
- NOT compatible with Gen V direct injected (DI) engines
Connections Included
- Sensors
- Bank 1 Coils & Injectors
- Bank 2 Coils & Injectors
- PCM/ECM Ignition
- PCM/ECM Battery
- Fuel Pump & Relay Control
- Ground & Battery (Pre-Terminated Ring Terminal)
- Cooling Fan Pigtails
- OBD II Port
Installation Notes
- Cooling fan relays are fused at 30 amps each and cannot be increased—verify fan amperage before installation.
- Wiring diagrams are not included due to the universal nature of this kit and the wide range of applications it supports.
- This is a true DIY kit and requires a working knowledge of GM EFI systems for proper installation and configuration.
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Product Reviews
2 Reviews Hide Reviews Show Reviews
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LS Swap Harness
Exactly what I needed. Nice product.
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LS swap fuse block
Just what I needed
