Cometic C5646-051 MLS Cylinder Head Gasket GM Bore - LT1/LT4 Gen-2 4.100

The Cometic C5646-051 is a high-performance Multi-Layer Steel (MLS) cylinder head gasket engineered specifically for GM LT1 and LT4 Generation II small block V8 engines. This precision-manufactured gasket features a 4.100-inch bore diameter and .051-inch compressed thickness, making it ideal for performance builds and engine rebuilds requiring reliable sealing under demanding conditions.

Key Features:

• Multi-Layer Steel construction provides superior sealing and durability
• 4.100-inch bore diameter accommodates stock and mildly over-bored cylinders
• .051-inch compressed thickness for precise compression ratio tuning
• Designed specifically for GM LT1/LT4 Gen-2 small block V8 engines
• Engineered to withstand high cylinder pressures and extreme temperatures
• Embossed stainless steel layers with advanced coating technology

Cometic MLS gaskets feature multiple layers of stainless steel with elastomeric coatings that provide maximum sealing in high-performance applications. The design allows for minor imperfections in sealing surfaces while maintaining consistent clamping pressure across the entire head-to-block mating surface. This gasket is an excellent choice for street performance, racing, and forced induction applications.