Cometic C5475-066 MLS Cylinder Head Gasket GM LS1/LS2/LS3/LS6 Gen 3/4 Small Block V8

The Cometic C5475-066 is a high-performance Multi-Layer Steel (MLS) cylinder head gasket engineered specifically for GM LS-series small block V8 engines, including LS1, LS2, LS3, and LS6 Generation 3 and 4 platforms. This precision gasket features a 3.910-inch bore diameter and 0.066-inch compressed thickness, making it ideal for applications requiring reliable sealing in both street and performance builds.

Key Features:

• Multi-Layer Steel (MLS) construction for superior sealing and durability
• 0.066-inch compressed thickness for precise compression ratio tuning
• 3.910-inch bore diameter accommodates standard and performance applications
• Designed specifically for GM LS1, LS2, LS3, and LS6 Gen 3/4 small block V8 engines
• Viton rubber gasket material seals fluids and resists high temperatures
• Stainless steel construction provides excellent heat resistance and durability
• Accommodates cylinder head movement and engine harmonics

Cometic MLS gaskets feature multiple layers of stainless steel with Viton rubber sealing beads, providing exceptional cylinder sealing while maintaining the ability to rebound and seal despite engine movement. The 0.066-inch thickness allows engine builders to fine-tune compression ratios while maintaining reliable sealing under high-cylinder pressures found in performance and forced induction applications.