HPI 1997–2006 LS1 Standalone Wiring Harness Drive-By-Cable for T56 / Non-Electric Transmission
Looking for an OEM Quality, Stand Alone Engine Harness?
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Take the wiring headaches out of your LS swap and get your build moving.
When you’re putting a drive-by-cable LS1 into an older chassis, the last thing you need is a wiring mess slowing the project down. The HPI 1997–2006 LS1 Standalone Wiring Harness Drive-By-Cable for T56 / Non-Electric Transmission is built to simplify the swap with a standalone harness designed for 1997–2006 LS1 engines running a T56, non-electric automatic, or manual transmission.
BUILT FOR DBC LS1 SWAPS
This harness is listed specifically for 1997–2006 drive-by-cable LS1 engines, making it a strong fit for builders who want a straightforward standalone solution without unnecessary wiring complexity. It is also positioned for T56, non-electric automatic, and manual transmission combinations.
CLEANER INSTALL. LESS GUESSWORK.
HPI describes this harness as including the needed dash connections, including speedometer, tachometer, park neutral, TCC, malfunction indicator, and a DLC port. That helps streamline the swap and reduces the amount of custom wiring needed to get the project finished cleanly.
BUILT LIKE A REAL SWAP HARNESS
The live page states that all harnesses are built with OEM quality and better, use GM color codes, include a high-quality sliding grommet, reinforced ring terminals, factory CPA locks, and 1200-degree fiberglass braid on heat-exposed circuits. The harness is also listed as receiving a quality check before shipment and being 100% handmade in the U.S.A.
READY FOR BIGGER INJECTOR SETUPS
The page states this harness includes EV1 injector connectors and offers free adapters to convert to EV6 or Delphi injector connectors if needed. It also lists upgraded wire for running large injectors and upgraded 60-amp relays, which makes it a better fit for performance-minded builds.
WHY HPI
At HPI, swap parts should do more than just connect. They should install clean, hold up under real use, and help move the project forward without wasting time. This harness is built for enthusiasts who want a professional standalone wiring solution for drive-by-cable LS1 swaps.
Features:
- Designed for 1997–2006 drive-by-cable LS1 engines
- Supports T56 transmission applications
- Supports non-electric automatic transmission applications
- Supports manual transmission applications
- Standalone engine harness configuration
- EV1 injector connectors
- Free EV6 or Delphi injector adapter connectors available by request
- 36 inches added length for easy computer mounting
- High-quality sliding grommet for flexible mounting
- GM color codes
- Reinforced ring terminals
- 1200-degree fiberglass braid on heat-exposed circuits
- Factory CPA locks
- Dash connections included
- Upgraded wire for large injectors
- Upgraded 60-amp relays
- Complete install instruction packet included
- Quality checked before shipment
- Handmade in the U.S.A.
Fitment:
- 1997–2006 LS1
- Drive-by-cable applications
- T56 transmission setups
- Non-electric automatic transmission setups
- Manual transmission setups
What’s Included:
- Standalone wiring harness
- EV1 injector connectors
- Dash connections including speedometer, tachometer, park neutral, TCC, malfunction indicator, and DLC port
- Install instruction packet
Price: $239.00
Get your LS1 swap wired with a harness built to simplify the install, clean up the engine bay, and keep your project moving forward with confidence.