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Cometic C5641-066 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

C5641-066
7 reviews
Sale Price

$136.53

Estimated ship date Tuesday, November 24

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Product Details

The Cometic C5641-066 is a premium multi-layer steel (MLS) cylinder head gasket designed specifically for GM/Mercury Marine 1050 Gen-IV big block V8 engines. This gasket features a 4.600-inch bore diameter and a compressed thickness of .066 inches, providing exceptional sealing performance for high-performance marine and automotive applications.

Key Features:

  • Multi-layer steel (MLS) construction for superior durability and sealing capability
  • 4.600-inch bore diameter optimized for Gen-IV big block applications
  • .066-inch compressed gasket thickness
  • Includes two slotted lifter valley bolt holes for proper installation
  • Engineered for GM and Mercury Marine 1050 Gen-IV V8 engines
  • Excellent resistance to combustion pressures and thermal cycling

Cometic's MLS gaskets utilize multiple layers of stainless steel with a Viton rubber coating, allowing them to withstand extreme cylinder pressures while maintaining the micro-seal necessary to contain combustion gases. The layered design also compensates for minor surface imperfections and thermal expansion, making this gasket ideal for both stock and modified marine engines.

Products specifications

Prop 65

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

Material

Multi-layer Steel

Shipping was fast and without damage and the price was great.

Paypal checkout saves me a whole bunch of time. THANKS

Easy, best price.

Great customer service. My product came quickly and just as described. Can't beat the prices anywhere on the internet, I looked for 2 months before buying. Thanks!

Good prices and easy ordering process (order #18003). The only issue that I had was after placing the order, completing the entire process, I received three emails stating that "We noticed that you started checking out on our site, but didn't quite finish the process". After calling customer service, they ensured me that the order was complete. Since then, I receive the same email(3 emails at a time) on a daily basis. Just a little annoying, but easy enough to delete.

I placed an order for Race Ramps and not only were they the best price I could find, but the shipping time was excellent as well!

Autoplicity gave me no hassles ever, the price dropped on the product I ordered and I just contacted BuySafe and received the difference quickly. Order was shipped same day. I will buy them over and over again! Thank you Autoplicity.

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