SBF Copper Head Gasket LH 4.155 x .043

The SCE GASKETS SBF Copper Head Gasket LH 4.155 x .043 is a professional-grade cylinder head gasket engineered for small block Ford engines requiring precise compression sealing. This left-hand gasket features a 4.155-inch bore diameter and 0.043-inch compression thickness, delivering reliable sealing performance across a wide range of engine builds—from stock replacements to high-performance applications. The copper construction provides superior heat dissipation and conformability compared to traditional materials, making it an industry standard choice for serious Ford engine builders and restorers.

The 0.043-inch compression thickness is calibrated to maintain correct combustion chamber volume and compression ratio while accommodating typical cylinder head and block surface finishes. Copper gaskets excel at seating into minor surface irregularities, reducing the risk of leakage common with softer composite materials. The precise 4.155-inch bore specification ensures tight tolerance compatibility with the specific cylinder sleeve or block boring of your engine, preventing any lateral movement or compression loss during operation. SCE GASKETS manufactures this component to OEM-equivalent quality standards, making it suitable for engine rebuild, reseal, or performance upgrade scenarios.

This gasket is intended for small block Ford engines—the most widely rebuilt American V8 platform. Whether you're restoring a classic muscle car, rebuilding a tow vehicle, or upgrading a hot rod, the correct gasket specification is essential to avoid coolant seepage, oil weeping, or combustion gas bypass. The left-hand (LH) designation indicates this is a driver-side gasket; ensure you order the matching right-hand gasket separately if completing a full cylinder head installation. Verify your engine's exact bore diameter and compression height requirements before purchase to guarantee proper fit and sealing performance.