Cometic Chevy Mark-IV Big Block V8 .040in MLS Cyl Head Gasket-4.600in Bore-Brodix Water Passages

This is a Cometic Multi-Layer Steel (MLS) head gasket designed for Chevrolet Mark-IV Big Block V8 engines. It features a 4.600-inch bore and is specifically made to work with Brodix water passages, offering a compressed thickness of 0.036 inches. This gasket is a well-built option for those rebuilding or upgrading high-output engines, suitable for applications using aluminum heads with either aluminum or cast iron blocks.

Cometic's MLS design uses multiple layers of stainless steel for increased strength and resistance to corrosion. The outer layers are coated with Viton, a heat-resistant rubber material that handles demanding sealing environments and various surface finishes up to 482°F (250°C). The center layer is uncoated stainless steel, allowing for precise thickness control. These gaskets are designed to provide maximum sealing performance without the need for additional sealants, and they can handle the shearing forces that can occur between different block and head materials.

This head gasket fits a wide range of Chevrolet vehicles from the mid-60s through the mid-80s, including popular models like the Impala, C10 Pickup, and Camaro. It's a solid choice when you need reliable sealing for your Big Block V8 build.