Cometic Pontiac 400/428/455 V8 .070in MLS Cylinder Head Gasket - 4.380in Bore

This product includes one Cometic Multi-Layer Steel (MLS) cylinder head gasket designed for Pontiac 400, 428, and 455 V8 engines. It features a 4.380-inch bore and a compressed operating thickness of 0.070 inches. This gasket fits a range of vehicles, including models like the Pontiac Firebird, Catalina, and Grand Prix from the late 1960s through the late 1970s.

Cometic MLS head gaskets are built with multiple layers of stainless steel for increased strength and resistance to corrosion. The outer layers are coated with Viton, a heat-resistant rubber material that can handle tough sealing conditions and various surface finishes, making them suitable for both aluminum and cast iron blocks. These gaskets are designed to provide maximum sealing performance for high-output engines and do not require additional sealants.