Cometic Chevrolet Gen-1 Small Block V8 .027in MLS Cylinder Head Gasket - 4.200in Bore

When you're rebuilding the top end of your Chevrolet Gen-1 Small Block V8, you'll get a set of Cometic Multi-Layer Steel (MLS) head gaskets in this package. These gaskets are designed with multiple embossed layers of stainless steel, featuring an outer layer coated with Viton rubber. The compressed operating thickness is .027 inches, and they have a 4.200-inch bore, making them suitable for aftermarket heads with undersized water ports that allow for customization.

Cometic MLS head gaskets are built to handle the demands of high-output engines and are ideal for sealing between aluminum heads and either aluminum or cast iron blocks. The multiple stainless steel layers provide increased strength and the ability to rebound, while also resisting corrosion. The Viton coating on the outer layers is heat resistant up to 482°F (250°C) and is designed to perform well in harsh sealing environments and under various load conditions. The center shim layer is uncoated stainless steel, allowing for different thickness requirements.

These gaskets do not require any additional sealants, simplifying installation. They fit a wide range of vehicles from the early 1980s, including models like the Chevrolet C10 Suburban, Buick Century, and GMC C1500.