Mercury Street Distributor Wire Harnesses

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.

Speedway Motors announced today a list of new products that will be debuted Aug. 4-7 at National Street Rod Association’s (NSRA) 53rd Annual Street Rod Nationals in Louisville, Ky.

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

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

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

Choosing the right suspension products when building your street rod or custom car. A step by step on how to determine which parts are needed for installation, how to calculate the spring rate and other helpful tips along the way.