Ls3 Standalone Wiring Harness Diagram

Psi sells standalone wiring harnesses for gm gen ii iii iv v ls lt based engines and transmissions.

Ls3 standalone wiring harness diagram.

We also carry many other products to help you with your swap including hard to find air conditioning parts. Primary wire is typically an 18 gauge wire and is the most common wire found in wiring harnesses. They are completely plug and plays with only 4 wires switched power constant power and ground connections. Speartech also provides ecm programming including e38 e67 e40 e92 ls lt engine wiring harness reworks and conversion adapters and programming.

The larger wires that feed heavy draw circuits are typically 14 to 12 gauge. 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. The wire in painless performance kits runs a little larger than the standard.

Psi sells standalone wiring harnesses for gm gen ii iii iv v ls lt based engines and transmissions. All psi harnesses are made in the usa. We also specialize in ls and lt swap standalone harnesses. All psi harnesses are made in the usa.

The 6 2l ls3 6l80e standalone wiring harness is designed to let you put the 2008 2014 ls3 6 2l engine in just about any vehicle. The wiring harness lengths are designed so you can mount the ecm under the dash. 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. This includes the lt1 ls1 ls2 ls3 ls7 l99 l76 l77 l92 l98 lm7 lm4 lsa ls9 l83 and the new gen v lt1.

Speartech is your ls lt wiring harness swap specialist. Hopefully you can find guidance or at least some clarity in what options are available and make a decision that best fits your application and budget. Here we learn how to modify the original equipment l99 or ls3 e38 ecm engine harness to work with a t56 six speed transmission ending in a three wire hook up. Pre orders may take up to 2 4 weeks for your stand alone engine harness to be madethis harness is designed to be a complete stand alone engine wiring harness to suit ls2 ls3 l77 l98 conversion in any model vehicle with an e38 computer and supports both 6l80e 6l90e transmission this harness does not include any sensors for emission controls computer in photos not included only listed.

We offer ls lt swap harnesses for all gen 3 4 and 5 ls lt engines including ls1 ls2 ls3 ls6 ls7 lsa ls9 gen 5 v8 lt1 lt4 lq4 lq6 l99 vortec variants dod vvt afm.