Street Performance Ls3 Wiring Harness

Whether it be hot rod street rod muscle classic car or universal wiring harnesses and accessories painless has your classic car truck off road rig or race car covered. The harnesses are also enclosed in heat resistant black split loom tubing for a factory look. Make sure any unused connectors or wiring are properly secured and protected sealed or taped as required to avoid short circuiting.

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Schwanke engines is the leader in engine development for all genres of motorsports.

Street performance ls3 wiring harness. You dream it we build it. Ls3 drive by wire throttle body. The harness shown on the page is an example of a ls3 with 4l70e setup. Custom wire harness ls3.

The wire in painless performance kits runs a little larger than the standard. Polished alternator and a c compressor. Primary wire is typically an 18 gauge wire and is the most common wire found in wiring harnesses. The larger wires that feed heavy draw circuits are typically 14 to 12 gauge.

Oil level oil pressure and evap evaporative emission control system wiring should likely be eliminated. These harnesses are designed for retrofitting 08 14 ls3 engines with 6l80e or 6l90e transmissions into older muscle cars and street rods or newer non emissions controlled vehicles. Ensure the wiring harness is secured as required and that the routing avoids locations which can potentially damage the wiring e g. Ls1 ls2 ls7 engines are our specialty as well as sbc engines wiring harnesses and components and tuning.

Starter high torque gear drive billet 8 rib accessory kit. Also catalyst o2s and potentially the entire transmission harness should you. Stand alone wiring harnesses wiring harness modification american autowire chassis wiring. Additionally schwanke engines specializes in building and fabricating custom cars and trucks.

The primary wires are 16 gauge with 12 gauge for heavy draw items such as the headlights. These harnesses include the gen ii lt1 lt4 gen iii 24x ls1 ls6 and vortec truck engines as well as gen iv 58x ls2 ls3 ls7 vortec and gen v lt ecotec3 engines. They are completely plug and play with four wire hookup switched power constant power and ground connections required. High volume oil pump.

Sharp edges pinch points rotating components exhaust components etc. Truck wiring harnesses travel over the top of the intake manifold so do we want that massive bundle of wires loosely sitting on top of our pretty car intake. All psi harnesses are made in the usa. We don t just make wiring we make painless wiring.

Psi sells standalone wiring harnesses for gm gen ii iii iv v ls lt based engines and transmissions. Celebrating 30 years as the leading manufacturer of automotive wiring. Each harness is tested prior to shipment and are designed with the hot rod enthusiast in mind.