Stock Car Valve Locks

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 install a Line lock as well as installing a line lock button and how a line lock works, with Kevin as he goes through the process on his '54 Chevy Belair.

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

Today we take a look at the differences between proportioning valves (both fixed and adjustable models) and the residual pressure valves we offer in this buyer's guide.

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

These days, muscle cars aren't just for straight line blasts down the dragstrip. Here's a primer on some of the trick hardware that's available to make your muscle car into a corner carving Pro Touring car that can do it all.

Roger Riffle had this 1930 Model A project on his mind for three decades.

We talked to a few of our in-house race experts about ways to make this racing season your best one yet!

Follow along as we install a Pete Jackson Noisy Gear Drive on a Chevy 454. Learn about the installation process from Speedway Motors Street Tech Kevin.

Street Rod Tech Steve L. talks about the need to be able to service and adjust the shocks on your vehicle, no matter the competition you built it for.