Cometic C5646-045 MLS Cylinder Head Gasket GM Bore - LT1/LT4 Gen-2 4.100 045

The Cometic C5646-045 is a high-performance Multi-Layer Steel (MLS) cylinder head gasket engineered specifically for GM LT1 and LT4 Generation 2 small block V8 engines. This gasket features a 4.100-inch bore diameter and a .045-inch compressed thickness, providing precise sealing for street performance and modified applications.

Key Features:

• Multi-Layer Steel (MLS) construction provides superior sealing and durability under high cylinder pressures
• 4.100-inch bore diameter accommodates stock and slightly overbored LT1/LT4 engines
• .045-inch compressed thickness allows for precise compression ratio tuning
• Advanced elastomer coating ensures optimal seal between head and block surfaces
• Designed to withstand extreme temperatures and pressures in performance applications
• Direct replacement for OEM head gaskets on 1992-1997 LT1 and 1996 LT4 engines

Cometic MLS gaskets feature multiple layers of stainless steel with specialized coatings that allow the gasket to adapt to minor surface imperfections while maintaining excellent combustion sealing. This design makes them ideal for engines with aluminum heads, boosted applications, or those running higher compression ratios.