Valve covers

Valve covers are an important part of the top end of the engine and are mounted over the valvetrain on the cylinder head. Their primary function is to seal the engine over the camshafts, valves and other components in the top end, so oil is kept inside while dirt, moisture and other contaminants are kept out. This means the valve cover is important for sealing, reliability and the overall function of the upper part of the engine.

A valve cover is more than just a lid. It is a component that must fit the engine correctly and work together with the gasket, bolts, breather system and any connections for the PCV system or other ventilation. If the valve cover is warped, leaking or poorly fitted, it can lead to oil leaks, false air, ventilation problems or oil in the engine bay. For that reason, valve covers are relevant for repairs, rebuilds and engine projects where a solution is needed that seals properly and works as it should.

When choosing a valve cover, it is important to consider fitment, material choice, gasket surface, breather solution and how it works with the rest of the engine setup. Whether the goal is to replace a worn original cover, upgrade to a stronger alternative or build a more customised engine, the valve cover is an important part of a tight and properly functioning engine.