Cometic C5889-056 GM Small Block MLS Cylinder Head Gasket Bore - LS7 Gen-4 V8 4.150

The Cometic C5889-056 is a precision-engineered multi-layer steel (MLS) cylinder head gasket designed specifically for GM LS7 Gen-4 small block V8 engines with aftermarket sleeve applications. This performance gasket features a 4.150-inch bore diameter and a compressed thickness of .056 inches, making it ideal for high-performance builds requiring precise combustion sealing.

Key Features:

• Multi-layer steel construction for superior sealing and durability
• 4.150-inch bore diameter accommodates aftermarket sleeve installations
• .056-inch compressed gasket thickness for optimal compression ratio tuning
• Engineered specifically for GM LS7 Gen-4 small block V8 engines
• MLS design provides excellent resistance to extreme cylinder pressures and temperatures
• Embossed stainless steel layers with elastomeric coating ensure reliable sealing

Cometic's MLS gaskets are a preferred choice for engine builders and performance enthusiasts due to their ability to withstand the demanding conditions of high-horsepower applications. The multiple layers of stainless steel conform to surface imperfections while maintaining excellent torque retention and combustion sealing throughout the engine's operating range.

Note: This gasket is designed for use with aftermarket sleeved blocks only and may not be suitable for standard production bore sizes.