Cometic GM LS1 SB 4.160 inch Bore .027 inch MLS Head Gasket

This listing is for one Cometic Multi-Layer Steel (MLS) head gasket, designed for GM LS Gen-3/4 small block V8 engines. It features a 4.160 inch bore and a compressed thickness of .027 inches. These gaskets are well-built with multiple layers of stainless steel for increased strength and corrosion resistance. The outer layers are coated with Viton, a heat-resistant rubber material that handles demanding sealing environments and various surface finishes without needing additional sealants. This makes them suitable for use with both aluminum and cast iron blocks.

Cometic MLS head gaskets are a popular choice for high-output engines because they can withstand significant shearing forces and maintain their seal. The multi-layer design allows them to rebound and resist corrosion, while the Viton coating ensures a reliable seal even under tough conditions. The center layer is stainless steel and can be varied to achieve different thickness requirements, with this specific gasket set at .027 inches compressed thickness.

This gasket fits a wide range of GM vehicles, including models like the Chevrolet Silverado, Corvette, and Cadillac CTS. Always refer to the manufacturer's installation instructions for proper torque sequences and procedures.