Valve Cover Gasket (1pc) 99-14 GM LS Engines

The Valve Cover Gasket for 1999–2014 GM LS-series engines is an essential wear item that seals the critical interface between the cylinder head and valve cover, preventing oil leakage that can contaminate spark plug wells and damage ignition components. Whether you're restoring a stock LS1 to showroom condition, refreshing a high-mileage engine, or completing a full LS swap into a classic platform, this OEM-quality gasket is the foundation of a leak-free engine bay. LS platform builders and stock restoration enthusiasts alike depend on reliable valve cover sealing to maintain engine cleanliness and preserve long-term reliability.

Cometic Gaskets engineers this valve cover gasket from durable rubber compound with a thickness of 0.047 inches, delivering consistent compression and conformability across the entire sealing surface to accommodate minor head and cover surface irregularities common in production engines. The single-piece design eliminates the complexity of multi-part gasket systems, reducing assembly time and the risk of misalignment during installation. This straightforward geometry ensures repeatable sealing performance across all LS variants—whether LS1, LS2, LS3, LS6, or truck-based LS engines—without requiring engine-specific modifications or additional hardware.

Installation is straightforward for both DIY enthusiasts and professional shops: simply clean the mating surfaces to bare metal, apply a light bead of gasket sealer if desired, torque the valve cover bolts to specification in a star pattern, and allow proper cure time before starting the engine. Fitment is universal across the entire 1999–2014 LS engine family, making this gasket an ideal inventory item for engine builders, transmission shops, and restorators managing multiple platform swaps. When paired with quality fasteners and proper torque procedures, this Cometic gasket delivers the oil containment and longevity expected from a premium OEM-equivalent component.