Modified Valve Locks

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

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

This article demonstrates how to install a complete Winters quick change kit with additional parts including birdcages, brackets, and calipers for a modified race car.

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.

In this Tech Tip, John makes a few suggestions on how to deal with the classic problem of a Flathead Ford, vapor-lock.

Expert techs Austin and Pat talk about some of the race car body parts we have to offer and the aerodynamic benefits they can add to your modified.

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

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.

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

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