Cometic GM Big Block MLS Cylinder Head Gasket Bore

The Cometic GM Big Block MLS cylinder head gasket is a multi-layer steel (MLS) head gasket for Chevrolet big block V8 engines. It is built for street performance, racing, and high-horsepower builds. Cometic offers it in a range of bore sizes and compressed thicknesses, so you can match it to your engine combination and desired compression.

Key Features:

• Multi-layer steel construction: Stainless steel layers resist heat, pressure, and cylinder head movement, which helps the gasket keep its seal.
• Embossed sealing layers: The embossments concentrate clamping load around the combustion chamber, coolant, and oil passages.
• Coated surfaces: A coating on the outer surfaces helps the gasket seal against imperfections in the head and block surfaces.
• Durable and reusable design: Compared with composite gaskets, MLS gaskets resist blowouts, crushing, and fatigue.
• Suited to forced induction and nitrous: The design handles the high cylinder pressures that boost and nitrous applications create.
• Range of options: Choose from different bore sizes and thicknesses to set compression ratio and piston-to-head clearance.

Cometic is known for precision-manufactured gaskets used by engine builders and racers. For a reliable seal, make sure the head and block surfaces are clean and flat, and follow the recommended torque procedure and fastener guidelines. Select the child item that matches your required bore size and thickness.