Cometic C5889-075 GM MLS Cylinder Head Gasket Bore Thick - LS7 Gen-4 4.150 075

The Cometic C5889-075 is a premium Multi-Layer Steel (MLS) cylinder head gasket engineered specifically for GM LS7 Gen-4 small block V8 engines with aftermarket sleeve applications. This gasket features a 4.150-inch bore diameter and .075-inch compressed thickness, making it ideal for high-performance builds requiring precise sealing and increased durability.

Key Features:

• Multi-Layer Steel construction provides superior sealing and conformability
• 4.150-inch bore diameter accommodates aftermarket sleeved blocks
• .075-inch (1.9mm) compressed thickness allows for custom compression ratio tuning
• Designed specifically for GM LS7 Gen-4 small block V8 engines
• Engineered for high-performance and racing applications
• Embossed stainless steel layers with FKM (fluoroelastomer) coating resist extreme temperatures and combustion pressures

Cometic MLS gaskets are the industry standard for engine builders and performance enthusiasts who demand maximum reliability under extreme conditions. The multi-layer design allows the gasket to adapt to block and head surface imperfections while maintaining consistent clamping pressure across the entire sealing surface. Note that this gasket is intended for use with aftermarket sleeved blocks only and proper surface preparation is essential for optimal performance.