Chevy 3A Electrical, Lighting and Wiring Parts

Learn how to hook up a 1-wire alternator on your vehicle. 1-wire alternators are perfect for engine swaps or just keeping things simple for your project.

Testing a 2 or 3 wire speed sensor sounds difficult, but these videos show that it actually is quite easy!

Learn the importance of proper electrical grounding and how it affects not only starting, but accessories and lighting as well.

Crimping or soldering automotive wiring are both viable options, but in some cases, it is preferable to do one vs the other

Check out this headlight wiring and taillight wiring diagram.

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!

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.

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.

Learn how to install and wire a digital tachometer. Speedway Motors covers the entire process with our installation of the Acewell 1100 Digital Tachometer.

Kevin W. walks through each step of installing a new alternator bracket on a 454 Big Block Chevy.