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

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

Speedway Economy 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.

How to Wire a Lightning Sprint Engine

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

A guide on removing and installing a new electric motor kit for exhaust cutouts.

How to Install an Electric Motor Kit for Exhaust Cutouts

Worried about a weak ball joint? We have the fix!

Reinforcing Lower Ball Joints

Engine Family Facets

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Oldsmobile Modern Muscle Ecm Wiring Harnesses

Plymouth Modern Muscle Engine Wiring Harnesses

Pontiac Modern Muscle Ecm Wiring Harnesses

Plymouth Modern Muscle Chassis Wiring Harnesses

Plymouth Modern Muscle Transmission Wiring Harnesses

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Plymouth Modern Muscle ECM Wiring Harnesses

Plymouth Modern Muscle ECM Wiring Harnesses | Speedway Motors

Shop Plymouth Modern Muscle ECM Wiring Harnesses and get Free Shipping on orders over $175 at Speedway Motors.

Plymouth Modern Muscle ECM Wiring Harnesses

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FAST 301404 Switching Outputs Wiring Harness, Push into Connector

FAST 301403 VSS and Auxiliary Shaft Wiring Harness

FAST 301400 Power Adder Wiring Harness, Nitrous and Turbo Applications

FiTech 38301-1 Ultra Ram EFI Throttle Body Adapter Harnesses

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