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Cometic C5641-056 GM Mercury Marine Gen-IV Big Block MLS Cylinder Head Gasket - V8

Part of: Cometic GM Big Block MLS Cylinder Head Gasket Bore

Other options in this family: Cometic C5334-040 Cometic C5333-089 Cometic C5755-080 Cometic C5817-040 Cometic C5640-070

Manufacturer

Picture for manufacturer Cometic

Part Number

C5641-056
8 reviews
Sale Price

$136.53

Estimated ship date Tuesday, November 24

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Product Details

The Cometic C5641-056 is a Multi-Layer Steel (MLS) cylinder head gasket engineered for GM and Mercury Marine Gen-IV big block V8 engines with a 1050 cubic inch displacement. This precision-manufactured gasket features a 4.600-inch bore diameter and .056-inch compressed thickness, providing exceptional sealing performance for high-performance marine and automotive applications.

Key Features:

  • Multi-Layer Steel (MLS) construction for superior durability and rebound characteristics
  • 4.600-inch bore diameter designed for Gen-IV big block V8 engines
  • .056-inch compressed gasket thickness
  • Includes provisions for 2 slotted lifter valley bolts
  • Compatible with GM and Mercury Marine 1050 Gen-IV applications
  • Advanced embossment technology ensures consistent seal under extreme temperatures and pressures

Cometic MLS head gaskets feature multiple layers of stainless steel with a Viton rubber coating that provides the optimal combination of strength, flexibility, and chemical resistance. The MLS design allows the gasket to recover from high cylinder pressures and maintain a superior seal throughout the engine's operating range, making it ideal for both stock and high-performance marine engine builds.

Products specifications

Prop 65

WARNING: Cancer and Reproductive Harm - www.p65warnings.ca.gov

Material

Multi-layer Steel

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