Cometic C5933-066 GM LSX MLS Cylinder Head Gasket Bore - Gen-4 4.125 066

The Cometic C5933-066 is a precision-engineered Multi-Layer Steel (MLS) cylinder head gasket designed specifically for GM LSX Gen-4 small block V8 engines. This high-performance gasket features a 4.125-inch bore diameter and a compressed thickness of .066 inches (66 thousandths), making it ideal for performance builds and engine rebuilds requiring precise compression control.

Key Features:

• Multi-Layer Steel (MLS) construction provides superior sealing and durability under extreme temperatures and pressures
• 4.125-inch bore diameter accommodates standard and slightly over-bored LSX Gen-4 applications
• .066-inch compressed thickness allows for precise compression ratio tuning
• Compatible with RHS (Racing Head Service) cylinder heads and OEM Gen-4 LSX applications
• Engineered for high-performance and racing applications where reliability is critical
• Cometic's MLS technology features multiple layers of stainless steel with elastomeric coatings for optimal sealing

Cometic MLS gaskets are the preferred choice of engine builders and racers worldwide, offering exceptional combustion sealing, resistance to blow-out, and the ability to withstand extreme cylinder pressures. This gasket is designed to maintain its sealing integrity through repeated heat cycles, making it perfect for street performance, drag racing, and road racing applications.