1. Mufflers & Resonators Deals
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  3. COMETIC C5789040

COMETIC Gasket Mls Head Gm C5789-040 191215195572 .040 4.125

fits model: Ls1, 125.

C5789-040 Cometic C5789040 Gasket Mls .040 Thickness 4.125 Head For Gm Ls1

( Brand: Cometic ), ( Part Type: Gasket Head ), ( Manufacturer Part Number: C5789040 ), ( Model Number: C5789-040 ), ( Material: Aramid Fiber ), ( UPC: 191215195572 ), ( Package Dimensions Lxwxh: 23.0x9.0x0.6 Inches ), ( Weight: 1.0 Pounds )

Review COMETIC Gasket Mls .040 Thickness 4.125 Head Gm fits LS1 125

The Cometic C5789-040 MLS head gasket for GM LS1 engines is a high-performance gasket designed to deliver superior sealing and durability. This gasket is specifically engineered for use in high-performance applications, making it an excellent choice for enthusiasts seeking reliable engine performance.

The C5789-040 gasket is constructed from Cometic's proprietary Multi-Layer Steel (MLS) technology. This design consists of multiple layers of steel, each with a different thickness and composition, that work together to provide maximum sealing surface area and superior compression. The MLS construction also allows for greater thermal resistance, enabling the engine to maintain optimal operating temperatures and reducing the risk of warping or distortion.

The gasket measures 4.125 inches in diameter and is specifically designed for use in GM LS1 engines. It features a precise, computer-contoured shape to ensure a perfect fit and even sealing surface. The gasket's edges are also carefully engineered to minimize stress concentrations and reduce the risk of leaks.

The Cometic C5789-040 MLS head gasket is manufactured using state-of-the-art equipment and materials to ensure the highest level of quality and consistency. Each gasket undergoes rigorous testing to ensure it meets or exceeds OEM specifications and provides reliable performance in even the most demanding conditions.

In summary, the Cometic C5789-040 MLS head gasket for GM LS1 engines is a high-performance gasket designed for superior sealing and durability. Its Multi-Layer Steel construction provides increased thermal resistance and compression, while its precise fit and computer-contoured shape ensure reliable engine performance. This gasket is an excellent choice for enthusiasts seeking to maximize the potential of their LS1 engine.

Cometic C5789-040 MLS 040 4.125 Head Gasket for GM LS1: A Detailed Analysis

The Cometic C5789-040 MLS 040 4.125 head gasket is a popular choice among GM LS1 engine owners due to its reputation for durability and performance. In this analysis, we'll discuss the pros and cons of purchasing this gasket to help you make an informed decision.

Pros:

1. High-performance design: The Cometic C5789-040 gasket is specifically engineered for high-performance applications, making it an excellent choice for those looking to extract maximum power from their LS1 engine.

2. Multi-layer steel construction: The gasket's multi-layer steel design provides superior sealing performance, reducing the likelihood of head gasket failure and resulting in improved engine efficiency.

3. Thickness: With a thickness of 0.040 inches, this gasket offers better sealing and resistance to warping under high engine temperatures and boost pressure compared to thinner factory gaskets.

4. Compatibility: The Cometic C5789-040 gasket is designed to fit GM LS1 engines, ensuring a perfect fit and eliminating the need for any modifications.

Cons:

1. Cost: Compared to factory gaskets, the Cometic C5789-040 gasket is more expensive. However, its superior sealing performance, durability, and compatibility make it a worthwhile investment for high-performance applications.

2. Installation: Installing a high-performance gasket like the Cometic C5789-040 can be more challenging than installing a factory gasket due to its thickness and multi-layer design. It may require the use of specialized tools and techniques to ensure proper installation.

3. Potential engine teardown: Installing a high-performance gasket can be an opportunity to inspect and address other engine components that may require maintenance or replacement. This could result in additional costs and labor.

Conclusion:

The Cometic C5789-040 MLS 040 4.125 head gasket is an excellent investment for GM LS1 engine owners seeking improved sealing performance, durability, and compatibility for high-performance applications. While its cost and installation challenges may be drawbacks, the benefits far outweigh the potential inconveniences. If you're looking to maximize the potential of your LS1 engine, this high-quality gasket is a worthwhile investment.

Recommendation:

If you're planning a high-performance build or upgrade for your GM LS1 engine and want to ensure reliable, efficient sealing, the Cometic C5789-040 MLS 040 4.125 head gasket is an excellent choice. Though it may require a larger investment upfront and a more involved installation process, the gasket's superior sealing performance, durability, and compatibility make it a worthwhile investment for those seeking optimal engine performance.

part # c5789040 price

  • $96.54

specifications mufflermooch:

  • for models: Ls1, 125
  • brand: Cometic
  • part type: Gasket Head
  • manufacturer part number: C5789040
  • model number: C5789-040
  • material: Aramid Fiber
  • upc: 191215195572
  • package dimensions lxwxh: 23.0x9.0x0.6 Inches
  • weight: 1.0 Pounds

shipping mufflermooch:

  • class: Standard
  • cost: $0.00
  • type: Fixed
  • service: Standard
  • transit: 2-5 Days

seller mufflermooch:

  • # reviews: 155
  • rating: 96.4%

offer mufflermooch:

  • sold: 0
  • started: August 18, 2025
  • availability: In Stock
  • quantity: 1
  • options: Ship-to-home

general mufflermooch:

  • Car Truck Parts Accessories > Exhaust Emission Systems > Mufflers Resonators
  • condition: New other see details

returns mufflermooch:

  • time: 30 Days
  • policy: Returns Accepted
  • paid by: Seller

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for models: ls1, 125, part type: gasket head, model number: c5789-040, package dimensions lxwxh: 23.0x9.0x0.6 inches,
category: auto parts > car truck parts accessories > exhaust emission systems > mufflers resonators, weight: 1.0 pounds, material: aramid fiber, sku: 8254904776358883,

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1 offer $96.54 USD
  • Offer #1: $96.54 price + free delivery = $96.54* 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