4.380 MLS Head Gasket .036 BBM

The 4.380 MLS Head Gasket .036 BBM by Cometic Gaskets is a precision engine sealing component designed for high-performance small-block applications that require strict OEM or race-spec tolerances. This multi-layer steel (MLS) gasket serves as the critical barrier between the cylinder head and engine block, preventing combustion gas and coolant leakage under extreme pressure and temperature cycling.

The .036-inch thickness specification and BBM bore configuration indicate this gasket is engineered for precise cylinder head-to-block alignment and pressure retention in modern engine designs. MLS construction delivers superior conformability and resistance to thermal shock and chemical degradation, making it suitable for demanding environments.

This gasket is compatible with small-block engine platforms commonly used in performance vehicles and racing applications, ensuring proper ring compression and seal integrity across all firing cycles. Cometic's manufacturing standards guarantee surface flatness and material consistency, critical factors in preventing blown head gaskets and catastrophic engine failure.