4.630 MLS Head Gasket .098 - BBC

The 4.630 MLS Head Gasket .098 - BBC from Cometic Gaskets is designed for serious big-block Chevrolet builds where reliability and consistent sealing are crucial. This multi-layer steel (MLS) gasket is suitable for both naturally aspirated and forced-induction applications, making it an excellent choice for engine builders, restoration shops, and performance enthusiasts who require minimal compression leakage and extended service intervals.

Constructed with advanced multi-layer steel technology, this gasket features stacked stainless and mild-steel layers with elastomer facing, providing a superior seal across varying deck surfaces and head finishes. The .098-inch thickness is one of the options available for BBC head decks, ensuring proper compression ratios while maintaining the gasket's integrity under thermal cycling and mechanical load. MLS gaskets are known for their ability to conform to minor surface irregularities, which is beneficial in restoration work or when pairing older castings with modern components.

The 4.630-inch bore diameter is compatible with many stock BBC specifications, making it a versatile choice for various applications, including 427, 454, and other BBC variants. This gasket is ideal for street rods, street-strip engines, marine applications, and full-race builds, providing the quality and precision expected from Cometic's proven track record.