Cometic C5747-030 MLS Cylinder Head Gasket Chevy Big Block Mark IV Bore - for ZL1 V8 4.300

The Cometic C5747-030 is a premium Multi-Layer Steel (MLS) cylinder head gasket engineered specifically for Chevrolet ZL1 Mark-IV Big Block V8 engines. This high-performance gasket features a 4.300-inch bore diameter and a .030-inch compressed thickness, making it ideal for performance builds and engine rebuilds requiring precise sealing and durability.

Key Features:

• Multi-Layer Steel (MLS) construction for superior sealing and durability
• 4.300-inch bore diameter designed for Big Block Chevy applications
• .030-inch compressed gasket thickness
• Engineered specifically for Chevrolet ZL1 Mark-IV Big Block V8 engines
• Provides excellent resistance to combustion pressure and temperature extremes
• Embossed stainless steel layers with elastomeric coating for optimal sealing

Cometic MLS gaskets are manufactured using multiple layers of stainless steel, which allow the gasket to adapt to sealing surface imperfections while maintaining superior torque retention. The advanced design ensures consistent clamping force across the entire sealing surface, making this gasket suitable for both street performance and racing applications. The .030-inch thickness helps achieve the desired compression ratio while providing reliable sealing between the cylinder head and engine block.