When installing a performance cam, many owners lose the engine’s cylinder deactivation feature. Here’s why you may want to keep it active. Manufacturers of modern V-8 engines have realized that we don ...

When cylinder deactivation returned decades later, it finally worked. It also fundamentally changed what a modern V8 was ...

How does cylinder deactivation work? When not needed, the system shuts down fuel supply to the cylinders not being used and closes the valves. There are two ways to accomplish this: 1) rocker arm ...