Cometic Buick Big Block V8 .070in MLS Cylinder Head Gasket - 4.385in Bore

This Cometic Multi-Layer Steel (MLS) head gasket is built with multiple embossed layers of stainless steel, featuring an outer layer coated with Viton rubber. When compressed, it measures 0.098 inches thick, and it's designed for a 4.385-inch bore, making it suitable for Buick Big Block V8 engines. The stainless steel construction offers increased strength and resilience, helping to resist corrosion and withstand the shearing forces between different head and block materials, whether you're pairing aluminum heads with aluminum blocks or aluminum heads with cast iron blocks.

The Viton coating on the outer layers is a heat-resistant elastomer capable of handling temperatures up to 482 degrees Fahrenheit (250 C), which is crucial for high-output engines. This advanced coating means the gasket doesn't require any additional sealants, simplifying installation and ensuring a reliable seal. The center shim layer is uncoated stainless steel and can be varied to achieve different thickness requirements, like the 0.070-inch thickness of this particular gasket. This design ensures maximum sealing performance for demanding applications.

This gasket fits a wide range of Buick vehicles from the late 1960s through the mid-1970s, including models like the Electra, Riviera, and Skylark. It's a well-built component designed to handle the rigors of performance V8 engines.