Valve Covers

What is a Grommet on a Valve Cover?

A grommet on a valve cover is a small rubber or synthetic ring that serves as a seal between the valve cover and various components that pass through it, such as breather tubes, PCV valves, and spark plug wires. Grommets play a crucial role in preventing oil leaks and maintaining a proper seal to ensure that the engine operates efficiently. Over time, grommets can become brittle or worn, leading to oil leaks and potential engine issues. It's essential to inspect and replace grommets as needed to maintain the integrity of your engine's valve cover system.

Do Valve Covers Need Sealant?

Yes, valve covers typically require sealant to ensure a proper and effective seal between the valve cover and the cylinder heads. Valve cover gaskets and seals alone may not provide an airtight seal, especially in areas where the surface is not perfectly smooth or there are imperfections. Using a suitable valve cover sealant or gasket maker helps fill any gaps or irregularities, preventing oil leaks and ensuring that the engine operates smoothly. When applying sealant, it's important to follow the manufacturer's recommendations and guidelines for a proper seal.

How Much Do Valve Cover Fasteners Cost?

The cost of valve cover fasteners can vary based on factors such as the type of fasteners, the material they are made from, and the brand. Basic sets of valve cover bolts or studs can start at around $10 to $20. Premium or specialty fasteners, such as those designed for specific engine types like BBC (Big Block Chevrolet), can range from $20 to $50 or more, depending on the features and materials. It's important to choose high-quality fasteners to ensure proper valve cover installation and engine performance.