chevy valve covers

A valve cover gasket seals the valve cover to the top portion of the engine cylinder head. The gasket prevents motor oil from leaking out as it travels around the camshafts, rockers and valves. In addition, many spark plug ports are sealed by the valve cover gasket.

The valve cover may seem like a simple part, but in fact it can have several inbuilt parts on modern car engines. Here's how to tell if your valve cover is bad