Wiring Harness, Gen III Vortec, Chevy, 4.8/5.3/6.0L, Each
Painless Performance Fuel Injection Harnesses
For maximum power with exceptional drivability, transplant the power of fuel injection into your vehicle with Painless Performance fuel injection harnesses. All kits include straightforward instructions and TXL high-temperature, color-coded, and labeled wire for ease of installation. All fuel injection harnesses are 100 percent quality-tested on OmniScanners to ensure the viability of the circuits. Harnesses for both GM and Ford applications are available and they use genuine original equipment connectors for trouble-free installation and operation.
Notes:
This harness is designed for the mechanical throttle body engines using an LS1 / LS6 PCM with a 4L60E, 4L65E, 4L70E, 4L80E, 4L85E, or manual transmission. 2003-2006 Engines will require a mechanical throttle body to be installed. 2003-2006 engines which were originally flex fuel will also require factory truck style injectors to be installed. Harnesses do not include connections for the rear O2 sensors or fuel tank pressure sensor but are available separate. Included with this harness is a 10 circuit weatherproof fuse block and GM color coded wires with labels for easy installation. Wiring Harness is extra long.