Here is some information for LT1, LS1, Vortec 4.8, 5.3, 6.0 wiring harnesses. There should be enough here to get you going in the right direction. Some of these I have pictures of completed harnesses I have modified for easy installation.

1994-96 Caprice, Impala SS, Road Master Wire Harness Schematics & Info - Includes pictures of modified harnesses. Picture of typical F-Body harness with text labels for all the plugs, close ups too! C100, C105, C210, C220, C230 are the main connectors that have wires needing connected somewhere when doing stand alone harnesses. Here is the link ...

Looking for an Affordable, In Stock, Plug and Play wiring harness for your LS Swap? PSI sells Standalone Wiring Harnesses for GM Gen II, III, IV, & V LS/LT based engines and transmissions.

Speartech is your LS & LT wiring harness swap specialist. 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.

Speartech has again led the way for the new Gen 5 LT / Vortec Truck swap harnesses and conversion. We have standalone swap harnesses available for LT1, LT4 and Vortec truck swaps L83 and L86. We support all 6L80, 6L90, 8L90, and …

Available to order now, our Gen 5 V8 standalone swap harness! Supported applications include the LT1, L83, L86, and L8T with a 6L80 / 6L90, or manual transmission. If you don't have an ECM, we can provide a new, programmed one.

There are small changes in the harnesses between SUV and Pickup, and depending on transfer case option, and of course year. The best approach I can suggest to modifying this harness for stand alone is to identify all your wires at the ECM. The …

Discover high-quality LT swap standalone wiring harnesses for Gen 5 LT1, LT4, L83, L84, L86, and L87 engines. Perfect for seamless engine swaps with superior performance.

PSI sells affordable, in stock, full tech support, plug and play standalone wiring harnesses for lsx and lt1 swaps. Looking to do an LS Swap? PSI is Your Source For LSX Conversion Parts.

This comprehensive guide will walk you through the key elements of an LT1 swap wiring diagram, including the essential components, such as the ignition control module, fuel injectors, and oxygen sensors. It will also explain how to properly connect these components to ensure seamless integration and optimal performance. By following the LT1 ...