4.100 MLS Head Gasket .040 - SBF

The 4.100 MLS Head Gasket .040 - SBF by COMETIC GASKETS is a crucial component for small-block Ford engine builders and high-performance enthusiasts. This Multi-Layer Steel (MLS) gasket is designed to seal the critical interface between the cylinder head and engine block, preventing coolant and combustion gas leakage. Ideal for rebuilding classic muscle car engines or upgrading daily drivers, this gasket is engineered for reliability.

Constructed from multiple layers of spring steel with elastomer coating, the MLS design provides superior sealing under extreme pressure and temperature cycling. The .040-inch thickness is precisely engineered to match the cylinder head's mounting surface, ensuring accurate compression ratio and optimal engine performance. Unlike single-layer gaskets, Cometic's MLS design resists blowby and accommodates the micro-finish variations found on aluminum and cast-iron heads.

This gasket is compatible with various small-block Ford applications, including 289, 302, and 351W variants, making it a versatile choice for mechanics and engine builders. Whether running stock boost or elevated boost pressures, this gasket offers dependable sealing for naturally aspirated, supercharged, and turbocharged small-block Ford engines.