Cometic C5331-047 MLS Cylinder Head Gasket Chevy Big Block Mark IV Bore - for 4.630

The Cometic C5331-047 is a Multi-Layer Steel (MLS) cylinder head gasket engineered specifically for Chevrolet Mark IV Big Block V8 engines with a 4.630-inch bore diameter. This precision-manufactured gasket features a compressed thickness of .047 inches, providing optimal sealing performance for high-performance and racing applications.

Key Features:

• Multi-Layer Steel construction for superior durability and heat resistance
• 4.630-inch bore diameter designed for Chevy Mark IV Big Block engines
• .047-inch compressed gasket thickness
• Advanced MLS technology provides exceptional sealing under extreme cylinder pressures
• Engineered to withstand high compression ratios and boost levels
• Precision-cut for accurate fitment and consistent clamping pressure

Cometic MLS head gaskets utilize multiple layers of stainless steel with a proprietary coating system that ensures maximum sealing capability across the entire gasket surface. The MLS design allows for minor surface imperfections while maintaining a reliable seal, making these gaskets ideal for performance builds, forced induction applications, and high-output naturally aspirated engines.