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Cometic C5639-027 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

C5639-027
4 reviews
Sale Price

$99.68

Estimated ship date Tuesday, November 24

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Product Details

The Cometic C5639-027 is a premium Multi-Layer Steel (MLS) cylinder head gasket engineered specifically for GM and Mercury Marine Gen-IV big block V8 engines with a 1050 cubic inch displacement. This high-performance gasket features a 4.530-inch bore diameter and a compressed thickness of .027 inches, providing excellent sealing capabilities for demanding marine and high-performance applications.

Key Features:

  • Multi-Layer Steel (MLS) construction for superior sealing and durability
  • 4.530-inch bore diameter optimized for Gen-IV big block applications
  • .027-inch compressed gasket thickness
  • Includes two slotted lifter valley bolt provisions for proper oiling system function
  • Designed for GM and Mercury Marine 1050 Gen-IV big block V8 engines
  • High-temperature and high-pressure resistant materials

Cometic's MLS gasket technology features multiple layers of stainless steel with special coatings that provide exceptional combustion sealing, superior rebound characteristics, and resistance to extreme temperatures and pressures. This gasket is ideal for both stock and modified marine engine applications where reliability and performance are critical.

Products specifications

Prop 65

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

Material

Multi-layer Steel

Easy web searching and good quality parts for reasonable price..customer friendly too!!!!!!

Excellent Service! Product shipped out the day after being processed and was sent via overnight delivery. Autoplicity also offered the lowest cost available for the product online.

I had just bought a body lift and spacer for truck, and sure enough it all came in a timely fashion. This site is a great one to check out if you need any parts. Easy access, quick processing, I believe this is the,site ill use fot now on.

Very good prices and incredibly fast shipping. Shipping costs were a bit high but I would definitely use them again!

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