The LR4 Wire Harness

The 4.8 (4800) is a highly capable engine, great for mid size engine compartments and is considerably smaller than the 6.0. The 4.8 and the 5.3 share the same block but the internals; crank, rods, are not. The intake is taught and ready for climbing. A taller plenum design / tunnel ram effect, allows the air to hit the intake ports, yielding efficient power, with a snap of torque.

Speed Scene Wiring fabricates this fuel injected wire harness, with emissions or without. If you require this engine to run in a marine environment, we can accommodate with the correct computer program. The nice thing about running a SSW wire harness and GM electronics are, diagnostics. If you decide to roll with the smaller ECM / VCM / PCM (These are neat names for computers.) You will lack the diagnostic capability.

  • Cost $599.00

The LM7 Wire Harness

The 5.3 (5300) is a highly capable engine, great for mid size engine compartments and is considerably smaller than the 6.0. The 4.8 and the 5.3 share the same block but the internals; crank, rods, are not. The intake is taught and ready for climbing. A taller plenum design / tunnel ram effect, allows the air to hit the intake ports, yielding efficient power, with a snap of torque.

Speed Scene Wiring fabricates this fuel injected wire harness, with emissions or without. If you require this engine in a marine environment, we can accommodate with the correct computer program. The nice thing about running a SSW wire harness and GM electronics are, diagnostic capabilities.
If you decide to roll with the smaller ECM / VCM / PCM (These are neat names for computers). You will lack the diagnostic capability.

  • Cost $599.00

LQ4 Wire Harness

The LQ4 / Vin U / 6000 engine is an awesome GM power-plant, similarly related, by looks, to the 4.8 LR4 & 5.3 LM7 but is massively in a class of it own. This engine is the foundation for a stroker motor, and when you need more room the LQ4 engine is the suburban of the LS blocks. With a great engine builder, the sky is the limit for horse power and torque, endless possibilities.

Speed Scene Wiring fabricates this fuel injected wire harness, with no emissions and any computer / transmission designation listed below.

  • Cost $599.00

GM – Speed Scene Wiring Harness Includes:

  • DLC That Works¬† / Diagnostic Capability (ALDL)
  • New TXL & GXL Wire
  • 4 Circuit Fuse Box Included
  • Fuel Pump Relay Included (ALDL)
  • All Triggers and Functions Tailed Out
  • New GM Connectors & Terminals & Seals
  • 1999-2002 LR4, LM7, LQ4 – 1200411 ECM
  • Mechanical Throttle
  • Tune Included In Above Price

Transmission Wiring:

  • STD Trans or GM Automatic
  • 4L60, 4L80E, Transmission