4.500 MLS Head Gasket .070 BBF 460

The 4.500 MLS Head Gasket .070 BBF 460 from Cometic Gaskets is a premium multi-layer steel gasket engineered for serious big-block Ford engine builds. This gasket is purpose-built for the legendary 460 cubic inch engine platform, delivering the sealing reliability demanded by high-performance mechanics and engine builders who refuse to compromise on durability. Whether you're rebuilding a stock 460 or pushing one to the limits with forced induction or nitrous, this gasket provides the critical seal between the cylinder head and block that prevents coolant crossover, oil leakage, and combustion blowby.

Multi-layer steel (MLS) construction is the industry standard for modern engine sealing, and Cometic's design leverages stainless steel and elastomer layers to distribute clamping load evenly across the gasket face. The .070-inch thickness is precisely engineered to match 460 head gasket specifications, ensuring correct combustion chamber volume and head bolt preload calculations remain accurate. The 4.500-inch bore diameter is sized specifically for the 460 block, accommodating the large displacement and cylinder spacing that characterize this platform. Cometic's manufacturing tolerances are tight enough to prevent edge erosion and delamination even under sustained high boost or extreme temperature cycling.

This gasket suits both stock restorations and radical street or competition engines, from truck and marine applications to hot rod projects. Installation requires proper head bolt torque sequencing and use of a quality torque wrench to avoid over-clamping or gasket walk. Mechanics building 460-powered trucks, boats, or vintage muscle cars depend on this gasket to survive thousands of heat cycles and maintain a sealed combustion chamber for years of reliable operation. Always pair with OEM or equivalent head bolts and follow manufacturer torque specifications for your specific engine configuration.