Cometic Gaskets - 4.540 MLS Head Gasket .040 - BBC

The Cometic Gaskets 4.540 MLS Head Gasket .040 - BBC is engineered for high-performance applications, offering a robust multi-layer steel (MLS) construction that ensures superior sealing and durability. Designed specifically for Big Block Chevy engines, this gasket features a 4.540-inch bore and a 0.040-inch compressed thickness, making it ideal for both naturally aspirated and forced induction setups. Its advanced design accommodates the thermal expansion of aluminum heads and cast iron blocks, providing a reliable seal under extreme conditions. This gasket is compatible with Gen V and Gen VI Big Block Chevy engines, including 454 and 502 cubic inch displacements. Please verify compatibility with your specific engine configuration before purchase.