SBF U/S Head Gasket (1 Piece)

The Mr. Gasket SBF U/S Head Gasket (MPN 5807G) is a precision-engineered cylinder head gasket designed specifically for Small Block Ford engines. Built with a rubber-coated graphite composition and engineered to a 0.038-inch compression thickness, this gasket delivers reliable sealing performance at the critical interface between cylinder head and engine block where combustion pressures and thermal cycling demand absolute integrity.

The 4.100-inch bore diameter is optimized for Small Block Ford applications, ensuring precise fitment without overhang or compression issues. Graphite-based gaskets excel in managing heat dissipation and maintaining their sealing properties across the wide temperature swings typical of engine operation—from cold startup to sustained high-load running. The rubber coating provides superior conformability to imperfect deck surfaces, reducing the likelihood of leakage around combustion zones and coolant passages. This single-piece construction eliminates the need for managing multiple components and simplifies installation for both rebuild shops and enthusiast rebuilds.

Ideal for Small Block Ford engine rebuilds, restorations, and repair work, this head gasket is suited for applications ranging from light-duty street engines to moderate performance builds. Whether replacing a failed gasket or assembling a freshly machined block and head, proper gasket selection is critical to preventing oil leakage, coolant seepage, and combustion blow-by that can compromise engine longevity and reliability.

Mr. Gasket is an established OEM and aftermarket supplier with decades of experience in gasket and sealing solutions for domestic engines. This head gasket meets the dimensional and material standards expected for Small Block Ford service, making it a direct replacement for original equipment or upgrade applications where quality sealing is non-negotiable.