Cometic MLS Head Gasket
2020–2023 Toyota GR Supra B58/B58H Engine
C14144-036
Overview:
The Cometic MLS (Multi-Layer Steel) Head Gasket is engineered specifically for the Toyota GR Supra models from 2020 to 2023 equipped with the B58/B58H engine. Designed to deliver superior sealing performance, this gasket is ideal for high-output engines where reliability and durability are paramount. It eliminates the need for additional sealants, providing a precise and consistent seal between the cylinder head and engine block. Whether you are upgrading your engine or replacing a worn gasket, the Cometic MLS gasket ensures optimal engine performance and longevity.
Built to withstand the stresses of modern performance engines, this gasket is suitable for applications involving aluminum heads mated to either aluminum or cast iron blocks. Its robust construction resists the shearing forces generated by the differing materials, maintaining a secure seal under extreme conditions.
Key Features:
Cometic MLS gaskets incorporate advanced materials and design features to meet the demands of high-performance engines:
- Multi-layer stainless steel construction for enhanced strength and durability
- Embossed outer layers coated with Viton rubber for superior heat resistance and sealing
- Compressed operating thickness of 0.036 inches, optimized for the Toyota B58/B58H engine
- Corrosion-resistant materials to ensure long-term reliability
- Designed to accommodate aluminum-to-aluminum and aluminum-to-cast iron applications
- Center shim layer of uncoated stainless steel customizable for thickness requirements
- Viton coating withstands temperatures up to 250°C (482°F) for harsh sealing environments
- No need for additional sealants, simplifying installation and reducing potential failure points
- Precision fit for an 83mm bore, matching factory specifications
Construction & Design:
The Cometic MLS head gasket features a sophisticated multi-layer steel design that combines multiple embossed stainless steel layers to provide exceptional sealing capability and mechanical strength. The outer layers are coated with Viton, a high-performance fluoroelastomer rubber known for its excellent heat resistance and chemical stability. This coating enhances the gasket’s ability to maintain a tight seal under extreme thermal and mechanical loads.
The center shim layer is made from uncoated stainless steel, allowing for precise thickness adjustments to meet specific engine requirements. This layered construction not only improves gasket rebound and sealing integrity but also resists corrosion and wear, ensuring consistent performance over time.
Installation & Fitment:
This gasket is designed as a direct replacement for the Toyota GR Supra 2020–2023 models with the B58/B58H engine, featuring an exact 83mm bore size for a perfect fit. Installation requires standard head gasket replacement procedures and does not necessitate any modifications to the engine block or cylinder head. The gasket’s design eliminates the need for additional sealants, streamlining the installation process and reducing the risk of leaks.
What's Included:
- One Cometic MLS Head Gasket, 0.036" thickness
Ideal For:
This head gasket is ideal for enthusiasts, professional tuners, and mechanics seeking a reliable, high-quality sealing solution for the Toyota GR Supra’s B58/B58H engine. It is particularly suited for high-performance builds, forced induction setups, and any application demanding enhanced durability and leak resistance under elevated pressures and temperatures.
