Cometic Gasket MLX Head Gasket

2008–2017 Dodge Viper 8.4L V10

Part #: C15431-040

Overview

The Cometic MLX LHS Head Gasket is engineered specifically for the Dodge Viper equipped with the 8.4L V10 engine from 2008 through 2017. Designed to deliver superior sealing performance, this head gasket is an essential upgrade for enthusiasts and professionals seeking reliable combustion chamber sealing under high-stress conditions. Its precise 4.125" bore and .040" thickness ensure an exact fit, maintaining engine integrity and performance without compromising durability.

Ideal for both street and track applications, the MLX gasket offers enhanced clamp load retention and reduced bore distortion, making it a trusted choice for high-performance rebuilds and engine upgrades. With Cometic’s advanced technology, this gasket eliminates the need for sealants or re-torquing, simplifying installation and providing long-lasting reliability.

Key Features

Cometic’s MLX (Multi-Layer Stopper) technology incorporates innovative design elements to optimize sealing and durability. Key features include:

• Multi-layer steel construction with an integrated stopper layer for superior combustion sealing
• Coated on both sides with Viton for enhanced chemical resistance and sealing capability
• Improved clamp load distribution around the cylinder bore to minimize distortion
• Precision bore size of 4.125" and thickness of .040" for exact fitment
• No requirement for sealants or re-torque, reducing installation time and potential errors
• Compatible with high-performance and OEM rebuild applications
• Designed to withstand extreme temperatures and pressures typical of the Dodge Viper’s V10 engine

Construction & Design

The Cometic MLX head gasket features a multi-layer steel design that combines durability with advanced sealing technology. The integrated stopper layer enhances the gasket’s ability to maintain a consistent clamp load, preventing bore distortion that can lead to leaks or engine damage. Both sides of the gasket are coated with Viton, a high-performance elastomer known for its resistance to heat, oil, and chemicals, ensuring a reliable seal under demanding conditions.

Manufactured with precision engineering, this gasket maintains the critical tolerances required for the Dodge Viper’s large displacement V10 engine. The combination of materials and design choices results in a gasket that balances strength, flexibility, and longevity.

Installation & Fitment

This Cometic MLX head gasket is a direct fit replacement for Dodge Viper models from 2008 to 2017 equipped with the 8.4L V10 engine. Installation requires standard head gasket replacement procedures and does not necessitate any modifications to the engine block or cylinder heads. The gasket’s design eliminates the need for additional sealants or re-torquing, streamlining the installation process and reducing the risk of installation errors.

For best results, ensure all mating surfaces are clean and free of debris before installation. Following the manufacturer’s torque specifications and sequence will help achieve optimal sealing performance.

What's Included

• One Cometic MLX LHS Head Gasket (4.125" Bore, .040" Thickness)

Ideal For

This head gasket is ideal for Dodge Viper owners, engine builders, and performance enthusiasts who demand reliable sealing for high-output 8.4L V10 engines. It suits both street-driven vehicles and track-focused builds, providing peace of mind during high-performance operation and engine rebuilds.