Speedmaster BBC MLS Head Gasket Bore Thick

Speedmaster BBC MLS head gaskets are multi-layer steel (MLS) cylinder head gaskets for Big Block Chevy engines. They seal the cylinder head to the engine block in high-horsepower builds. They are offered in several bore and compressed thickness options, so you can match the gasket to your engine combination.

Key Features:

• Multi-layer steel construction: A high-pressure steel laminate design that resists the strong shearing forces between an aluminum head and an iron block.
• Embossed sealing: Internal embossments expand under heat and pressure to improve sealing at high combustion pressures and temperatures. This helps in heavy nitrous and turbocharged applications.
• Better torque retention: Holds clamping load and resists distortion better than conventional or composite head gaskets in high-cylinder-pressure applications.
• Versatile use: Suited to aluminum heads on cast iron blocks and aluminum heads on aluminum blocks.
• Consistent contact pressure: Designed to keep contact pressure between the head and block steady through the dynamics of engine operation.

Whether you are building a street/strip engine or a high-boost race motor, these Speedmaster MLS head gaskets give you a durable seal. Select the bore and compressed thickness that suit your build.