Copperseal Exh Gasket SB Ford (Pair)

The Copperseal Exhaust Gasket for Small Block Ford (pair) is a critical sealing component designed to prevent exhaust leaks at the manifold-to-cylinder-head interface. Whether you're rebuilding a classic Small Block Ford engine, diagnosing a persistent exhaust leak, or completing a full performance upgrade, these gaskets deliver reliable performance in both stock and modified applications. Exhaust gasket failure is one of the most common issues on Ford engines, leading to performance loss, increased emissions, and audible leaks that compromise your engine's efficiency.

Mr. Gasket's copper-composite construction provides superior heat resistance and durability compared to standard fiber gaskets, maintaining a consistent seal even under sustained high exhaust temperatures typical of modified or racing applications. The pair configuration covers both the driver and passenger side exhaust manifold connections, ensuring balanced exhaust flow and eliminating cross-firing or uneven scavenging that can occur when gaskets fail on only one bank. The gasket's composition resists blowout and maintains clamping force through repeated heating cycles, critical for engines running headers, performance manifolds, or high-RPM operation where thermal cycling is severe.

Mechanics and enthusiasts working on 260, 289, 302, 351W, and other Small Block Ford engines will benefit from this pair as both a preventive maintenance item and a mandatory replacement during any exhaust manifold service, header installation, or cylinder head work. Installation is straightforward—remove the manifold bolts, clean mating surfaces thoroughly, position the new gaskets, and reassemble using stock fasteners. This proven Mr. Gasket solution is ideal for street machines, restorations, performance builds, and any SBF application where eliminating exhaust leaks is a priority.