Cometic GM Gen-V/VI Big Block V8 .027in MLS Cylinder Head Gasket - 4.540in 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 0.027 inches thick and is designed for a 4.540-inch bore, making it suitable for GM Gen-V/VI Big Block V8 engines. These gaskets are ideal for high-output applications and can handle the demands of both aluminum heads to aluminum blocks and aluminum heads to cast iron blocks, resisting the shearing forces that can occur between dissimilar metals.

The strength of these MLS gaskets comes from their layered stainless steel construction, which also allows them to rebound and resist corrosion. The Viton coating on the outer layers is a heat-resistant material capable of withstanding temperatures up to 482 degrees Fahrenheit (250 C), ensuring a reliable seal in harsh conditions and across various surface finishes. The center layer is uncoated stainless steel, and its thickness can be adjusted to meet different requirements, providing flexibility for various engine builds. Because they are designed for maximum sealing performance, these gaskets do not require additional sealants.

This gasket fits a wide range of GM trucks and vans from the early 90s, including models like the Chevrolet C1500, GMC C2500 Suburban, and Chevrolet C3500. It's a solid option when you need dependable sealing for your Big Block V8 rebuild.