Cometic Gasket MLS Head Gasket

2011–2024 Dodge Charger, Challenger, Durango, Jeep Grand Cherokee, Ram 2500/3500 6.4L 392 HEMI

Part #: C5027-056

Overview

The Cometic Gasket MLS Head Gasket .056 LH with a 4.120" bore is precision-engineered for Dodge 6.4L 392 HEMI engines from 2011 through 2024. Built to withstand the rigors of high-performance and racing applications, this multi-layer steel (MLS) gasket ensures a reliable, leak-free seal between the cylinder head and engine block. It is an essential component for enthusiasts, professional engine builders, and mechanics seeking durability and optimal engine compression without compromise.

Whether you are performing a rebuild or upgrading your engine for enhanced power and reliability, this gasket maintains integrity under extreme heat and pressure, preventing coolant and oil leaks. Its advanced design supports both naturally aspirated and forced induction setups, making it a versatile choice for a wide range of performance builds.

Key Features

Cometic’s MLS head gasket incorporates cutting-edge materials and engineering to deliver superior sealing performance and longevity:

• Multi-layer steel construction for enhanced strength, flexibility, and durability
• Embossed outer layers coated with Viton rubber for exceptional heat and chemical resistance
• Compressed operating thickness of 0.036" for precise and consistent sealing
• Compatible with aluminum heads to aluminum blocks and aluminum heads to cast iron blocks
• Corrosion-resistant design that withstands shearing forces between dissimilar metals
• Center shim layer of uncoated stainless steel tailored to exact thickness requirements
• No additional sealants required, simplifying installation and reducing failure points
• Engineered to meet the demands of high-output, high-temperature performance engines

Construction & Design

This MLS head gasket is constructed from multiple embossed layers of stainless steel, providing both strength and the ability to rebound under extreme pressure. The outer layers are coated on both sides with Viton, a high-performance fluorocarbon elastomer known for excellent heat resistance up to 250°C (482°F) and outstanding chemical durability. This coating ensures a reliable seal against exposure to oil, coolant, and combustion gases.

The gasket’s center shim layer is made from uncoated stainless steel, allowing precise control over thickness to meet specific engine build requirements. This layered design effectively manages differential expansion and contraction between aluminum heads and cast iron or aluminum blocks, preventing leaks caused by metal movement and thermal cycling.

Installation & Fitment

The Cometic MLS Head Gasket is a direct-fit replacement for Dodge 6.4L 392 HEMI engines from 2011 to 2024, including applications with World Products Man-o-War blocks. Installation follows standard head gasket replacement procedures and does not require additional sealants due to the advanced Viton coating. For best results, adhere to manufacturer torque specifications and head bolt tightening sequences to ensure optimal sealing and long-term durability.

What's Included

• One Cometic MLS Head Gasket .056 LH with 4.120" bore

Ideal For

This head gasket is ideal for performance enthusiasts, professional engine builders, and mechanics working on Dodge 6.4L 392 HEMI engines across multiple models. It is perfectly suited for high-output naturally aspirated or forced induction applications where reliable sealing under extreme conditions is critical. Whether rebuilding a stock engine or assembling a high-performance race motor, this gasket provides the durability and sealing integrity required for demanding use.

Fitment Summary

• 2015–2019 Jeep Grand Cherokee 6.4L SRT
• 2018–2019 Dodge Durango 6.4L 392
• 2012–2019 Dodge Charger 6.4L 392
• 2011–2019 Dodge Challenger 6.4L 392
• 2014–2018 Ram 3500 6.4L 392
• 2014–2018 Ram 2500 6.4L 392
• 2012–2014 Jeep Grand Cherokee 6.4L SRT8
• 2012–2014 Chrysler 300 6.4L 392

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.