Cometic Chevy Small Block 4.060 inch Bore .030 inch MLS Head Gasket (18 or 23 Deg. Heads)

If you're rebuilding the top end of your Chevy Gen-1 Small Block V8, getting the head gaskets right is crucial for sealing combustion pressure. This Cometic Multi-Layer Steel (MLS) head gasket is built for engines with a 4.060 inch bore and a compressed operating thickness of .030 inch. It's designed to work with both 18 and 23-degree cylinder heads, offering a round bore for a consistent seal.

These MLS gaskets are constructed from multiple layers of stainless steel, which gives them strength and resistance to corrosion. The outer layers are coated with Viton, a heat-resistant rubber material that can handle tough sealing environments and various surface finishes. This construction means the gasket seals effectively without needing additional sealants, and it's suitable for combinations of aluminum and cast iron blocks and heads. The center layer is uncoated stainless steel, allowing for precise thickness control.

This gasket fits a wide range of Chevrolet and GMC vehicles from the early 1980s, including models like the Chevrolet C10, Camaro, and GMC C1500. It's a solid option for high-output engines where reliable sealing is a priority.