Racing Exhaust Valves

Loud when you want it, quiet when you don't! Learn how exhaust cutouts work, manual vs electric models, and which is best for your build.

Learn how to choose the right valve springs for your camshaft, the differences between single and dual valve springs and when to replace them.

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.

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

There's more to a performance exhaust system than just headers and mufflers. Selecting the best mid-pipe design and the addition of an H-pipe, X-pipe, or Y-pipe exhaust crossover can free up some inexpensive horsepower.

One of the most important parts of your racing operation is the engine. This article gives a detailed overview on how to maintain your engine to get the most out of it for as long as possible. Also learn some tips to prolong the life of your engine.

Some basic info on the various exhaust options carried by Speedway Motors.

Overheating is a major cause of DNFs and damaged engines. We'll go beyond the cooling system for solutions to your overheating issues.

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

Headers and manifolds differ in design and function. Long tube headers, shorty headers, and exhaust manifolds each have their pros and cons regarding performance and application.