Cometic Chevy Small Block Brodix (All 12-23 Deg Head) 4.030in Bore .040 inch MLS Head Gasket

Starting with a compressed thickness of 0.040 inches, this Cometic Multi-Layer Steel (MLS) head gasket is built for serious performance. It’s specifically designed for Brodix heads with a 12-23 degree valve angle and features a 4.030-inch bore, making it a solid choice for many Chevrolet Gen-1 Small Block V8 engines. The multi-layer stainless steel construction offers increased strength and resistance to corrosion, while the outer layers are coated with Viton, a heat-resistant rubber material that can handle temperatures up to 482 degrees Fahrenheit. This coating ensures a reliable seal even under demanding conditions, and the gasket requires no additional sealants, simplifying installation.

These MLS gaskets are well-suited for combinations using aluminum heads on either aluminum or cast iron blocks, as they can effectively manage the shearing forces that can occur between different metals. The center shim layer is stainless steel and can be varied to achieve different thicknesses, though this specific gasket is set at 0.040 inches compressed. The undersized water ports on this gasket allow for customization, giving you flexibility when matching it to aftermarket heads. This gasket fits a wide range of vehicles from the early 1980s, including popular models like the Chevrolet C10 and Camaro, as well as GMC trucks.