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Cometic C5639-054 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

C5639-054
7 reviews
Sale Price

$135.62

Estimated ship date Tuesday, November 24

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Product Details

The Cometic C5639-054 is a premium multi-layer steel (MLS) cylinder head gasket engineered specifically for GM/Mercury Marine Gen-IV big block V8 engines with a 1050 cubic inch displacement. This gasket features a precision 4.530-inch bore diameter and a compressed thickness of .054 inches, providing optimal sealing and compression control for high-performance marine and automotive applications.

Key Features:

  • Multi-layer steel (MLS) construction for superior durability and heat resistance
  • 4.530-inch bore diameter designed for Gen-IV big block V8 engines
  • .054-inch compressed gasket thickness for precise compression tuning
  • Includes two slotted lifter valley bolt holes for proper engine assembly
  • Engineered for GM/Mercury Marine 1050 cubic inch applications
  • Cometic's proprietary coating technology ensures reliable sealing under extreme conditions

Cometic gaskets are manufactured using advanced materials and precision manufacturing processes to meet the demands of high-performance engines. The MLS design allows the gasket to adapt to engine movement and thermal expansion, maintaining a reliable seal even under racing or marine conditions. This gasket is ideal for engine rebuilds, performance upgrades, or replacement in demanding applications.

Products specifications

Prop 65

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

Material

Multi-layer Steel

Es la 1ra vez q compro y aun no se

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