Cometic Chevy Small Block 4.200 inch Bore .066 inch MLS-5 Head Gasket (w/All Steam Holes)

If you're working on a Chevrolet Gen-1 Small Block V8 and need a reliable head gasket, this Cometic MLS gasket is a solid option. It's built for a 4.200 inch bore and has a compressed thickness of 0.066 inches, with all steam holes included to help manage heat and pressure effectively. This gasket is designed to handle the demands of higher output engines, making it suitable for a wide range of vehicles from the early 80s, including models like the Chevrolet C10, Camaro, and GMC C1500.

Cometic uses a multi-layer steel (MLS) construction for these gaskets, which means they're made of several layers of stainless steel. The outer layers are coated with Viton, a heat-resistant rubber material that can handle temperatures up to 482 degrees Fahrenheit, ensuring a strong seal against the cylinder head and block. This construction not only provides excellent sealing performance but also offers increased strength and resistance to corrosion, making them a good choice for both aluminum and cast iron engine blocks.