Cometic Buick Big Block V8 .040in MLS Cylinder Head Gasket - 4.385in Bore

This Cometic Multi-Layer Steel (MLS) head gasket is built with embossed outer layers coated in Viton, a heat-resistant rubber material rated up to 482°F. It features a compressed operating thickness of .040 inches and a bore size of 4.385 inches, making it a solid choice for Buick Big Block V8 engines. MLS gaskets are known for their strength and ability to rebound, resisting corrosion thanks to their multiple stainless steel layers. They are designed to provide maximum sealing performance for high-output engines and are suitable for use with both aluminum and cast iron blocks, handling the shearing forces that can occur between different metals.

Because they are made from multiple layers of stainless steel, these gaskets offer increased strength and corrosion resistance. The Viton coating on the outer layers is specifically chosen to handle harsh sealing environments, varying load conditions, and different surface finishes. The center layer is uncoated stainless steel and can be varied to achieve different thickness requirements, like the .040 inch compressed thickness found in this particular gasket. These gaskets do not require any additional sealants, simplifying installation. This gasket fits a range of classic Buick vehicles, including models like the Electra, Riviera, and Skylark from the late 60s and early 70s.