4.500 MLS Head Gasket .051 - BBF 460

The 4.500 MLS Head Gasket .051 - BBF 460 from Cometic Gaskets is a precision cylinder head gasket engineered for Big Block Ford 460 engines, delivering the reliability and seal integrity demanded by high-performance and stock engine builders alike. This gasket serves as the critical seal between your cylinder head and engine block, preventing coolant and combustion gases from breaching into oil galleries and vice versa. Whether you're rebuilding a classic muscle car, restoring a heavy-duty truck, or maintaining a marine or industrial power plant, a quality head gasket is non-negotiable for engine longevity and performance.

Built with multi-layer steel construction, the 4.500 MLS Head Gasket features a 0.051-inch compression thickness specifically calibrated for the 460 cubic-inch Big Block Ford platform. The multi-layer steel (MLS) design provides superior gasket durability, reduced friction, and improved sealing compared to traditional composite gaskets, particularly under elevated heat and pressure cycles common to performance applications. The 4.500-inch bore diameter is precisely matched to factory 460 specifications, ensuring proper alignment with cylinder walls and head bolt patterns while the controlled thickness maintains correct combustion chamber volume and compression ratio integrity.

Technicians and engine builders trust Cometic Gaskets for OEM-equivalent and performance-upgrade applications across carbureted and fuel-injected 460 engines found in Ford trucks, Broncos, and classic hot rods. Installation requires standard head gasket procedures—clean sealing surfaces, proper torque sequences, and compatible head bolts—making this gasket suitable for both professional machine shops and experienced DIY rebuilders. The gasket's dimensions of 9.5 x 0.5 x 24 inches accommodate standard 460 cylinder head packages, and its single-gasket design simplifies ordering and inventory management for fleet maintenance and restoration projects.