Shelby Series 1 Wiring Harness and Components

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.

In this Tech Tip, John answers a customer question about the Speedway 12 Circuit Wiring Harness.

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

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!

Darrian explains the process of Shelby/Arning drop changes and how that affects your car.

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.

Speedway Motors just added some exciting new options to our line of racing harnesses.

Need a little help figuring out which race harness will suit you best? Click here for some things to keep in mind!

Check out this headlight wiring and taillight wiring diagram.

Speedway Motors employee Jess M. talks about the custom battery tray and cables she built for her '33 Ford.