Cometic C5761-056 MLS Cylinder Head Gasket GM Vortec Gen-VII Big Block - 8100 V8

The Cometic C5761-056 is a precision-engineered Multi-Layer Steel (MLS) cylinder head gasket designed specifically for GM L18 Vortec 8100 Gen-VII Big Block V8 engines. This high-performance gasket features a 4.280-inch bore diameter and .056-inch compressed thickness, providing an optimal seal for right-hand side (RHS) cylinder head applications.

Key Features:

• Multi-Layer Steel (MLS) construction for superior sealing and durability
• Designed for GM Vortec 8100 (8.1L) Gen-VII Big Block V8 engines
• 4.280-inch bore diameter matches stock and mild performance applications
• .056-inch compressed gasket thickness
• Right-hand side (RHS) configuration
• Engineered to withstand extreme cylinder pressures and temperatures
• Provides exceptional recovery and conformability to sealing surfaces

Cometic's MLS gaskets feature multiple layers of stainless steel with a Viton rubber coating, offering superior resistance to combustion pressures, temperature cycling, and corrosive elements. The embossed layers create a spring-like effect that maintains consistent clamping pressure across the entire sealing surface, even as the engine expands and contracts during operation. This gasket is ideal for stock rebuilds, towing applications, and performance upgrades on GM's legendary 8.1L big block platform.