Chevy Silverado 2500 Engine Wiring Harnesses

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

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.

Little is thought of your engine’s starter until it refuses to turn your engine over at the worst possible moment. Today’s powerful mini starters can crank the biggest engines with ease. Learn how in our buyer’s guide.

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

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

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.

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!

This Chevelle project gets rewired with a Speedway Motors 22 Circuit wiring kit. Follow along as Jeff guides you through this application, starting with a good mounting location for the fuse box. Learn more on continuity, grounding and relays.

Build a high-performance Gen V LT engine with proven power combos and learn about LT upgrades and tuning tips for maximum power

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