Cometic Ford SB 4.030 inch Bore .040 inch MLS Head Gasket (w/AFR Heads)

This is a Cometic Multi-Layer Steel (MLS) head gasket specifically made for Ford SB engines with a 4.030 inch bore and designed to work with AFR heads, featuring a coolant eyebrow. It's built with multiple layers of stainless steel for strength and corrosion resistance, and the outer layers are coated with Viton, a heat-resistant rubber material that ensures a solid seal without needing extra sealants. This gasket is a good choice for high-output engines and can handle the differences between aluminum and cast iron blocks.

The compressed thickness of this gasket is 0.040 inches, which is important for maintaining proper compression ratios. The stainless steel construction allows the gasket to rebound and resist corrosion, while the Viton coating on the outer layers is rated for temperatures up to 482 degrees Fahrenheit, making it suitable for demanding sealing environments. The center shim layer is uncoated stainless steel and can be varied to meet different thickness needs, but this specific part number is set at 0.040 inches compressed thickness.

This gasket fits a wide range of Ford Windsor V8 applications, from classic Broncos and F-Series trucks to later model Explorers. It's a well-built component for rebuilding or upgrading your engine's top end.