HKS Metal Headgasket

2013–2020 Subaru BRZ, Toyota Scion FR-S & Toyota 86 FA20 Engine

23001-AT003

Overview:

The HKS Metal Headgasket is a high-performance replacement gasket engineered specifically for the FA20 engine found in the Subaru BRZ, Toyota Scion FR-S, and Toyota 86 models from 2013 through 2020. Designed to upgrade the factory head gasket, this product enhances the engine’s compression ratio to approximately 12.4:1, delivering a more sports-oriented combustion environment. Crafted from superior stainless steel materials, the gasket ensures reliable sealing under high pressure and temperature conditions, making it ideal for enthusiasts seeking improved engine durability and performance.

Whether your build is naturally aspirated, turbocharged, or supercharged, the HKS Metal Headgasket offers a tailored solution to maintain engine integrity while supporting increased power output. Its advanced design also promotes efficient heat transfer, helping to cool the combustion chamber and maintain optimal operating temperatures.

Key Features:

Engineered for enhanced sealing and durability, the HKS Metal Headgasket includes the following key features:

• Maintains a superior seal under high-pressure conditions to support increased compression ratios
• Compression ratio increased to approximately 12.4:1 for improved engine responsiveness
• Thickness of 0.7mm optimized for performance tuning applications
• Constructed from high-quality stainless steel for excellent thermal conductivity and durability
• Improved contact surface pressure to ensure reliable sealing and prevent leaks
• Available in various thicknesses and types to match specific tuning needs, including supercharged setups
• Special opposed bead stopper design for left-hand and right-hand sides on supercharged engines
• Compatible with factory FA20 engines in Subaru BRZ, Toyota Scion FR-S, and Toyota 86 models (2013–2020)

Construction & Design:

The HKS Metal Headgasket is manufactured using premium stainless steel, chosen for its exceptional strength and thermal conductivity. This material allows the gasket to efficiently transfer heat away from the combustion chamber to the cylinder head, aiding in temperature management and reducing the risk of overheating. The gasket’s 0.7mm thickness is carefully engineered to optimize the compression ratio without compromising sealing integrity.

Advanced bead stopper technology is incorporated to prevent gasket blowout under extreme pressure, especially in forced induction applications. This robust construction ensures the gasket maintains a tight seal even under the demanding conditions of high-performance tuning.

Installation & Fitment:

The HKS Metal Headgasket is a direct replacement for the factory gasket on the FA20 engine and fits Subaru BRZ, Toyota Scion FR-S, and Toyota 86 models from 2013 to 2020. Installation requires standard head gasket replacement procedures and should be performed by a qualified technician to ensure proper torque specifications and sealing. No major modifications are necessary, but it is recommended to inspect the cylinder head and block surfaces for flatness and cleanliness prior to installation.

What's Included:

• One HKS Metal Headgasket (0.7mm thickness)
• Installation instructions and specifications

Ideal For:

This metal head gasket is ideal for automotive enthusiasts and tuners who are upgrading their FA20 engines for increased performance. It is especially suited for those running naturally aspirated builds seeking a higher compression ratio, as well as forced induction setups including turbocharged and supercharged applications. The gasket provides enhanced reliability and sealing under elevated cylinder pressures, making it a critical component for track, street performance, and motorsport use.