Cometic .256in x .500in x 1.020in x 1.000in Viton Metal Jacket Hat Valve Stem Seal - 16 Pack

This pack includes 16 Cometic Viton Metal Jacket Hat Valve Stem Seals. These seals are crucial for keeping oil from leaking past the valve guides and into your engine's combustion chambers. When valve stem seals start to fail, you might notice blue smoke from your exhaust, especially after the engine has been idling or when you first start it up. Replacing them is a key part of engine maintenance, especially if you're rebuilding your top end or noticing oil consumption issues.

The Viton material used in these seals is known for its resistance to heat and oil, which is exactly what you need in this high-temperature environment. The metal jacket design adds an extra layer of durability and helps ensure a solid seal around the valve stem. The specific dimensions of .256in. inside diameter, .500in. outside diameter, and a 1.020in. x 1.000in. overall height are designed to fit specific valve stems, ensuring a proper seal without excessive drag.

This 16-pack is perfect for most V8 engines, covering all the intake and exhaust valves. Make sure to check your specific engine's needs to confirm if this quantity is sufficient for your application.