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  3. COMETIC 191070015145

COMETIC Gm Iv Mls He 191070015145 Ii/ 4.630IN .045IN 402

fits model: 396, 427, 454, Mark.

Cometic 191070015145 Gm Gen Ii/ Mark Iv Bb 4.630in Bore .045in Mls 396 / 402 427 454 He

( Brand: Cometic ), ( UPC: 191070015145 )

Review COMETIC Gm Gen Ii/ Iv 4.630in Bore .045in Mls 402 He fits MARK 396 427 454

The Cometic 191070015145 gasket set is a high-performance solution designed specifically for GM Gen II/IV engines with a 4.630-inch bore and 0.45-inch deck height. This gasket set caters to various applications, including those with MLS heads and engines with serial numbers 396, 402, 427, and 454.

This Cometic gasket set is manufactured using advanced technology and materials. Each gasket is precision-machined to ensure a perfect fit and sealing surface. The gaskets are made from Cometic's proprietary Material Supplemented Composites (MSC) technology, which is a blend of elastomeric and composite materials that provide superior sealing, durability, and resistance to compression and heat.

The MLS (Multi-Layer Steel) design employed in this gasket set offers numerous benefits, such as reduced compression loss, improved sealing, and enhanced engine performance. The MLS design consists of multiple layers of steel and elastomeric material that provide a more uniform sealing surface, eliminating the need for a gasket face coating.

The Cometic 191070015145 gasket set includes all necessary gaskets for a full engine rebuild, including those for the cylinder head, cylinder block, and oil pan. The gaskets are engineered with attention to detail, ensuring a proper fit and optimal engine performance.

In summary, the Cometic 191070015145 gasket set is a high-quality, advanced solution designed for GM Gen II/IV engines with a 4.630-inch bore and 0.45-inch deck height. The MLS design offers superior sealing, durability, and resistance to compression and heat, making it an excellent choice for enthusiasts and professionals seeking top engine performance.

Cometic 191070015145 GM Gen II/IV 4.6L MLS Head Gasket: Pros, Cons, and Conclusion

The Cometic 191070015145 MLS head gasket is a popular choice among automotive enthusiasts for various reasons. In this article, we will discuss the pros and cons of buying this gasket for your 4.6L GM Gen II/IV engine.

Pros:

1. Multi-Layer Steel (MLS) Design: MLS gaskets provide excellent sealing performance and durability compared to traditional composite gaskets. They can withstand high compression and temperature, making them suitable for high-performance applications.

2. Suitable for various engine sizes: This gasket is compatible with 4.6L engines with displacements of 396, 402, 427, and 454 cubic inches.

3. Improved cooling efficiency: MLS gaskets have a better sealing surface, which can help improve cooling efficiency by reducing heat leaks between cylinder heads and engine blocks.

4. Reduced engine noise: The improved sealing performance of MLS gaskets can help reduce engine noise caused by combustion gases leaking between cylinder heads and engine blocks.

5. Longer engine life: By providing a better seal, MLS gaskets can help prevent coolant and oil leaks, which can lead to longer engine life and fewer repair costs.

Cons:

1. Cost: MLS gaskets generally cost more than composite gaskets due to their superior sealing performance and durability.

2. Installation: Installing MLS gaskets can be more complex than installing composite gaskets due to the need for precise alignment and careful handling.

3. Compatibility: While this gasket is suitable for various 4.6L GM engines, it may not be compatible with all engine variations. It is essential to verify compatibility before purchasing.

Conclusion:

The Cometic 191070015145 MLS head gasket offers several advantages for those seeking improved engine performance, durability, and longevity. However, it comes with a higher cost and more complex installation process compared to traditional composite gaskets. Ultimately, the decision to purchase this gasket depends on your specific needs, budget, and engine configuration. If you value superior sealing performance, durability, and cooling efficiency, this gasket is an excellent investment. However, if you are working on a budget or prefer a simpler installation process, you may want to consider other options.

Recommendation:

If you are looking for a high-performance, durable, and efficient head gasket for your 4.6L GM engine, the Cometic 191070015145 MLS head gasket is an excellent choice. However, consider your budget and installation experience before making a purchase. If you have limited resources or prefer a simpler installation process, you may want to consider a composite gasket or consult with a professional mechanic for advice.

Details:

The outer layers are embossed and coated on both sides with Vito a flour elastic rubber based material that is heat resistant to 250 C/ 482. MLS Cylinder Head Gasket; 4.630in. They can withstand the shearing force created by two materials. MLS gaskets have increased strength because they are comprised of multiple layers stainless steel; which also creates the ability to rebound and resist corrosion.

The or shim layer is un coated stainless steel, which can be varied to accommodate multiple thickness requirements. Comprised of multiple embossed layers stainless steel with the outer utilizing a Vito rubber coating. Vito is designed to meet the demands of a variety harsh sealing environments, load conditions, and surface finishes. MLS gaskets are ideal for both aluminum heads to blocks and cast iron.

Compressed operating thickness is 0.045. Chevrolet Mark-IV Big Block V8 .045in.

specifications motoralph:

  • for models: 396, 427, 454, Mark
  • brand: Cometic
  • upc: 191070015145

payments motoralph:

  • credit card: Discover
  • wallet: Paypal
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general motoralph:

  • Motors > Parts Accessories > Other
  • condition: New

offer motoralph:

  • quantity: 2
  • sold: 0
  • options: Ship-to-home
  • availability: In Stock
  • started: June 19, 2025

shipping motoralph:

  • carrier: USPS, FedEx
  • cost: $0.00
  • class: Standard
  • type: Fixed
  • transit: 5-9 Days
  • service: USPS Ground Advantage, FedEx Ground or FedEx Home Delivery

seller motoralph:

  • city: Windsor, Connecticut
  • rating: 99.7%
  • # reviews: 35118

returns motoralph:

  • policy: Returns Accepted
  • time: 30 Days
  • paid by: Seller
for models: 396, 427, 454, mark,
sku: 8604181258089504,

Cometic 191070015145 Is Similar To:

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5 offers $98.94–$105.99 USD
  • Offer #1: $103.89 price + $12.99 shipping estimate = $116.88* total. Compressed Thickness, Chevy, Big Block, Each. Head Gasket, Multi-layer Steel, 4.630 in.+$12.99 shipping
  • Offer #2: $98.94 price + $11.95 shipping estimate = $110.89* total. No sealants or re-torque required.;. Compatible with Big Block Chevy.+$11.95 shipping
  • Offer #3: $105.99 price + $0.00 shipping estimate = $105.99* total. Placing an order outside the US is easy! Engine Cylinder Head Gasket.FREE SHIPPING
  • Offer #4: $113.99 price + $0.00 shipping estimate = $113.99* total. MLS gaskets are ideal for both aluminum heads to aluminum blocks and aluminum heads to cast iron blocks. Comprised of multiple embossed layers of stainless steel with the outer layers utilizing a Viton rubber coating.FREE SHIPPING
  • Offer #5: $112.46 price + $0.00 shipping estimate = $112.46* total. The outer layers are embossed and coated on both sides with Viton (a flour elastomer rubber based material that is heat resistant to 250 C/ 482 F). Compressed operating thickness is 0.045".FREE SHIPPING

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