Cometic Gasket MLS Head Gasket

2011–2024 Dodge 6.4L 392 HEMI

Part #: C5026-056

Overview

The Cometic MLS Head Gasket is engineered to deliver superior sealing performance for the Dodge 6.4L 392 HEMI engines from 2011 through 2024. Designed for high-output applications, this gasket ensures reliable durability and leak-free operation under extreme conditions. It is an ideal upgrade or replacement part for enthusiasts and professionals seeking enhanced engine reliability without the need for additional sealants.

Built to withstand the stresses of modern performance engines, this gasket is compatible with both aluminum heads to aluminum blocks and aluminum heads to cast iron blocks, making it versatile for various engine configurations. Its multi-layer steel construction provides excellent resistance to corrosion and the shearing forces generated by dissimilar metals.

Key Features

Cometic’s MLS Head Gasket incorporates advanced materials and design elements to meet the demands of high-performance engines:

• Multi-layer steel (MLS) construction for maximum strength and durability
• Embossed outer layers coated with Viton rubber for superior sealing and heat resistance
• Compressed operating thickness of 0.036" for precise fit and sealing
• Designed to handle the shearing forces between aluminum heads and cast iron or aluminum blocks
• Corrosion-resistant stainless steel layers ensure long-lasting performance
• No sealants required, simplifying installation and reducing potential failure points
• Center shim layer of uncoated stainless steel allows for thickness customization
• Heat resistant up to 250°C (482°F) thanks to Viton coating
• Specifically engineered for World Products Man-o-War blocks

Construction & Design

The Cometic MLS Head Gasket features a robust multi-layer steel design composed of several embossed stainless steel layers. The outermost layers are coated on both sides with Viton, a high-performance fluoroelastomer rubber known for its exceptional heat resistance and sealing capabilities. This coating enables the gasket to maintain a tight seal under extreme thermal and mechanical stress.

The center shim layer is made from uncoated stainless steel, providing structural integrity and allowing for precise thickness adjustments to accommodate different engine builds. The embossed layers increase gasket elasticity, enabling it to rebound and maintain a consistent seal despite engine vibrations and thermal expansion.

Installation & Fitment

This MLS head gasket is designed for direct fitment on Dodge 6.4L 392 HEMI engines produced between 2011 and 2024. It requires no additional sealants, simplifying the installation process and reducing the risk of leaks caused by improper sealant application. Proper surface preparation and torque specifications should be followed to ensure optimal sealing performance.

Compatible with both aluminum and cast iron blocks, this gasket is suitable for factory replacement as well as performance rebuilds, making it a reliable choice for engine builders and mechanics.

What's Included

• One Cometic MLS Head Gasket, 4.120" bore, .056" compressed thickness

Ideal For

This gasket is ideal for performance enthusiasts, professional engine builders, and mechanics working on Dodge 6.4L 392 HEMI engines from 2011 to 2024. It is especially suited for applications requiring enhanced sealing reliability under high boost, high RPM, or heavy-duty conditions. Whether rebuilding a stock engine or upgrading for racing or street performance, this gasket provides dependable sealing and longevity.

Cometic Gasket supplies high-performance sealing solutions for motorsports and high-stress engine builds, with a strong focus on modern gasket materials like multi-layer steel (MLS) head gaskets. Their catalog spans head gaskets and complete gasket sets across a wide range of applications, helping builders maintain reliable combustion and fluid sealing under extreme pressure and heat.