Tech Articles

Upgrade your tires using a cross-reference chart to convert bias-ply tire sizes to radial tire sizes, as well as a formula to find the overall height of a tire.

5 easy steps to select and install the proper lug nuts for your vehicle's aftermarket wheels. This lug nut guide covers all you need, including torque specs.

Learn about classic car bodywork from an expert. We go over tips for Dents, Guide Coats, Sanding, and more for your hot rod or other classic body restoration project.

There is a lot to consider when choosing the proper spark plug for your engine's intended application and power level. Let us take some of the guesswork out with our spark plug buyer's guide.

Learn how to install and properly tune brakes with an adjustable proportioning valve block.

Learn about the specs of the V8 Ford Flathead Engine. Check out these Flathead firing order diagrams and torque specifications chart created by the experts.

We look at the basics of performance carburetion and what you need to properly supply your street or race car with enough fuel in this buyer's guide

That fresh engine deserves all new exhaust bits. Be sure to have a look at our rundown on selecting the best setup for headers, exhaust, and mufflers for your ride here.

This guide explains the difference between offset and backspacing when measuring wheels for your hot rod, muscle car or race car with helpful diagrams.

Why buy a cold air intake like everyone else when you can build your own?