Located directly above the cylinder head, a valve cover is a critical component that prevents oil from escaping through the top of an engine. Oil keeps temperatures down and reduces friction between ...

As a vehicle's engine operates, the intake and exhaust valves open and close rapidly while the pistons move up and down in the cylinder. These mechanical actions require a constant supply of hot oil ...

For owners of a 2006 Cummins 5.9 diesel engine, every component in the engine bay plays a critical role in overall performance and longevity. Valve covers and their securing bolts are essential for ...

Rebuilding your motor and throwing on the same accessories is much like taking a shower and putting your old clothes back on. Simply put, you just don't do that. A rebuilt motor brings you peace of ...

It’s well known that, years ago, some genius at AMC decided it would be a good idea to put plastic valve covers on Jeep 4.2L (258ci) engines. Unfortunately, it didn’t take long for them to start ...

Valve covers can make or break an engine's underhood appeal. In addition to providing adequate valvetrain clearance and helping keep oil where it's supposed to be, they are one of the most ...