MLS Head Gasket - SBC 4.200 x .040

The MLS Head Gasket - SBC 4.200 x .040 from MAHLE is a professional-grade sealing solution designed for small-block Chevrolet engines that require precision and durability. This gasket is essential for anyone rebuilding an SBC engine, whether for street performance, racing, or restoration work, where combustion chamber sealing integrity directly impacts horsepower delivery and engine longevity.

Multi-layer steel (MLS) head gaskets represent the evolution of gasket technology, engineered for builders and mechanics who demand reliability across stock and modified applications. MLS gaskets utilize layered steel construction with elastomer coatings to create a superior seal compared to traditional composite or copper gaskets. The 4.200-inch bore diameter and .040-inch thickness specify this gasket for standard SBC cylinder head applications, matching factory and popular aftermarket head configurations.

This MLS head gasket is ideal for engine builders, performance shops, and DIY mechanics performing head gasket replacement or complete engine rebuilds on small-block Chevrolet. MAHLE's manufacturing ensures precise thickness tolerance and consistent sealing surface quality, reducing the risk of head gasket failure that plagues inferior alternatives.