Electrical wiring is one of those tasks that enthusiasts dread tackling on their own. We're here to tell you that wiring your project vehicle is something you can do with a little help from your friends at Speedway Motors!

The Best Wiring Solution for Your Hot Rod or Muscle Car Project

A guide on how to install a universal wiring harness in a car. Read tips on properly wiring taillights, headlights, gauges, ignition switch, steering column and more.

Universal Wiring Harness Instructions - Installation

Making great horsepower on a budget is the LS engine family’s claim to fame, but just like any other engine, the more power you ask of it the more you’ll need to spend.

6.0 LS Build Combinations: Recipes for 500-1,000 HP

LS swaps are nothing new, but they're still a little mysterious to some of us. Here is an overview of what you will need and what you need to know to swap some modern performance into your muscle car, truck, or hot rod!

LS Swap How-To Guide

A new print and digital magazine about all things street rodding and more, brought to you by some familiar names.

Modern Rodding

Having a difficult time deciding which racing harness to use? With many options to consider from size to closure type, this article will walk you through how to go about choosing the perfect one for you and your race car. Safety first!

How to Choose a Racing Harness

Read how to wire a lightning sprint engine. This detailed account of how to successfully wire an engine will ensure a smooth installation.

How to Wire a Lightning Sprint Engine

Watch our Steering Column Wiring Guide video for useful tips on wiring your new steering column for your vehicle. Ididit takes you through the wiring process.

Steering Column Wiring Guide

Check out this headlight wiring and taillight wiring diagram.

Headlight & Taillight Wiring Diagram

Follow this step by step guide on how to install adjustable LS motor mounts to set your engine location exactly where you want it.

A Guide to Installing Adjustable LS Motor Mounts

Engine Family Facets

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4L65E Modern Muscle Wiring Harness and Components

4L65E Modern Muscle Wiring Harness and Components | Speedway Motors

Shop 4L65E Modern Muscle Wiring Harness and Components and get Free Shipping on orders over $175 at Speedway Motors.

4L65E Modern Muscle Wiring Harness and Components

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ICT Billet WATRA30-18 Trans Wire Adapter 4L60E to 4L80E, 18 Inch

Painless Wiring 60520 Throttle by Wire EFI Harness, 05-06 GM LS2

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