4.080 MLS Head Gasket .040 - SBF w/AFR Heads

The Cometic Gaskets 4.080 MLS Head Gasket .040 - SBF w/AFR Heads is a precision cylinder head gasket engineered for Small Block Ford engines paired with AFR cylinder head assemblies. This multi-layer steel gasket is designed for builders and engine shops who demand reliability in high-performance and competition applications where critical sealing integrity is non-negotiable. The .040-inch compression thickness provides optimal clamp load distribution and maintains proper combustion chamber geometry.

Manufactured with Multi-Layer Steel (MLS) construction, this gasket features advanced composite materials that resist thermal cycling, pressure spikes, and coolant corrosion common in performance engines running elevated boost or high RPM. The coolant-channeled design ensures efficient thermal management by allowing coolant flow paths optimized for AFR head architecture, reducing hot spots and extending component longevity. The 4.080-inch bore diameter is precisely matched to AFR specification castings, and the gasket's engineered spring-back properties maintain a consistent seal even under extreme operating conditions without requiring re-torquing.

This gasket is ideal for serious engine builders, turbo/supercharger conversions, and Small Block Ford platform upgrades utilizing American Racing Foundation heads. Proper installation requires torquing cylinder head bolts to OEM specifications in the correct sequence to ensure uniform clamping pressure across the gasket surface. Always verify head deck flatness and cylinder bore sizing before installation to maximize gasket performance and engine durability in street, strip, or race environments.