Cometic C5646-075 GM Small Block MLS Cylinder Head Gasket - LT1/LT4 Gen-2 V8

The Cometic C5646-075 is a high-performance Multi-Layer Steel (MLS) cylinder head gasket engineered specifically for GM LT1 and LT4 Gen-2 Small Block V8 engines. This gasket features a 4.100-inch bore diameter and a compressed thickness of .075 inches, providing a precise seal between the cylinder head and engine block.

Key Features:

• Multi-Layer Steel (MLS) construction for superior durability and sealing performance
• .075-inch compressed thickness for optimal compression ratio control
• 4.100-inch bore diameter designed for LT1/LT4 Gen-2 applications
• Advanced coating technology prevents fretting and provides excellent torque retention
• Engineered to withstand high cylinder pressures in performance and racing applications
• Compatible with aluminum and iron cylinder heads

Cometic MLS gaskets utilize multiple layers of stainless steel with proprietary coatings to create a gasket that is both strong and flexible. This design allows the gasket to adapt to cylinder head and block movements during thermal cycling, ensuring a reliable seal under extreme conditions. Ideal for street performance, racing, and forced induction applications where stock gaskets may fail.