Cometic C5076-040 GM LSX Gen-4 V8 Cylinder Head Gasket 4.100" Bore .040" MLX

The Cometic C5076-040 is a premium Multi-Layer Stopper (MLX) cylinder head gasket engineered specifically for GM LSX Gen-4 small block V8 engines. This left-hand side gasket features a 4.100-inch bore diameter and .040-inch compressed thickness, making it ideal for performance builds requiring precise sealing and durability.

Key Features:

• Multi-Layer Stopper (MLX) construction with embossed stainless steel layers for superior sealing
• 4.100-inch bore diameter accommodates stock and mildly overbored LSX engines
• .040-inch compressed thickness allows fine-tuning of compression ratios
• Engineered specifically for GM LSX Gen-4 small block V8 applications
• Left-hand side (LHS) gasket design
• Premium materials resist blowout and maintain seal integrity under extreme conditions

Cometic's MLX gaskets combine multiple layers of stainless steel with a Viton rubber coating to provide exceptional sealing performance in high-performance and racing applications. The embossed stopper layer ensures consistent clamping pressure around the combustion chamber, while the flexible outer layers adapt to minor surface imperfections for reliable long-term sealing.