Cometic C5646-030 GM MLS Cylinder Head Gasket Bore - LT1/LT4 Gen-2 4.100 030

The Cometic C5646-030 is a premium Multi-Layer Steel (MLS) cylinder head gasket engineered specifically for GM LT1 and LT4 Gen-2 small block V8 engines. This high-performance gasket features a 4.100-inch bore diameter and .030-inch compressed thickness, making it ideal for performance builds and engine rebuilds requiring precise sealing specifications.

Key Features:

• Multi-Layer Steel (MLS) construction for superior sealing and durability
• 4.100-inch bore diameter accommodates standard and mild overbore applications
• .030-inch compressed thickness allows for precise compression ratio tuning
• Designed specifically for GM LT1/LT4 Gen-2 small block V8 engines
• Accommodates combustion pressure and thermal expansion better than conventional gaskets
• Embossed stainless steel layers with elastomer coating ensure maximum sealing

Cometic MLS gaskets are the professional choice for high-performance and racing applications, offering exceptional combustion sealing while maintaining optimal head gasket life. The multi-layer design allows the gasket to adapt to minor surface imperfections while maintaining consistent clamping pressure across the entire sealing surface.