Modified Exhaust/Intake Valve Kits

Learn how to convert an engine using a Carbureted LS Conversion Kit, along with tips for a smooth install. Read more on the manifold and timing control module, which comes with an MSD ignition control box and wiring harness.

Keep your rear cylinders running cool in a high performance engine by installing a water bypass kit to the intake manifold.

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

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.

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

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

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

Learn about performing an LS Swap in a 1972 Chevelle in this tech article. We'll discuss lessons learned from our Chevelle engine swap using a 500-horse 6.0.

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

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.