Speed Scene Wiring

LS6 Wire Harness & Wiring

Standalone LS6 harness designed to run in almost any environment. Passenger-side fender ECM mount, T56 or 4L60E options, and full no-emissions programming available. USA made since 1999.

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LS6 Wire Harness | LS6 Harness | LS6 Wiring

The LS6 wire harness or LS6 wiring is designed to run in almost any environment imaginable. The way we designed the LS6 wiring / LS6 harness places the ECM in the passenger side fender, or inside the car, length permitting. A common transmission is the T56, which is what the harness above is designed for — we can also create a 4L60E option in any of our LS engine fuel management wire harnesses.

We have programs available that will allow you to successfully run a no-emissions engine, with whatever transmission you desire: 700R4, T56, 4L60E, 4L65E, 4L80E, NV4500.

LS6 Wire Harness 2002 by Speed Scene Wiring — labeled diagram showing coil pack harness, fuel injectors, 411 ECM, fan, and fuel pump connections

Transmission Options

  • 700R4
  • T56
  • 4L60E
  • 4L65E
  • 4L80E
  • NV4500

EPA Approved Checklist

  • VSS Circuit
  • Diagnostic Link Connector
  • Correct Emissions Connectors
  • VSS Pigtail
  • Alternator
  • Tach Pigtail

Ready to Build Your LS6 Harness?

Custom-built to your spec. Passenger-side fender ECM. Any transmission. USA made since 1999.

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