Plymouth Valve Covers

Learn what a manual valve body can and cannot do for your automatic transmission and performance driving needs

Learn how to check and set your engine's valve lashes to prevent and detect engine failure. See steps on removing spark plugs and if they are tuned correctly.

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.

Learn about the different types of brake valves. Our guide covers Metering, Residual, Proportioning, and Combination valves to understand your brake system.

A guide on how to check piston to valve clearance to prevent interference. See what tools are used to make this process easier.

How proportioning valves work, fixed vs adjustable valves explained, and how to reset a prop valve.

Follow these easy step by step metal valve stem installation instructions. Steel bolt in valve stems are a more reliable way to keep the air in your tires.

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

Check out some cool overhead conversions to the Ford flathead V8 on display in the Museum of American Speed!

In this Tech Tip, John confirms a customer question regarding the need for a proportioning valve on his ’55 F100 brake build.