HKS Head Gasket

2013–2020 Subaru BRZ / 2013–2016 Scion FR-S / 2017–2020 Toyota 86 FA20 Engine

23002-AT002

Overview:

The HKS Grommet Type Head Gasket is engineered specifically for the FA20 engine found in the Subaru BRZ, Scion FR-S, and Toyota 86 models from 2013 to 2020. As turbocharging and supercharging upgrades become increasingly popular for these vehicles, the factory head gasket can often become a weak point under higher boost and increased cylinder pressures. This gasket addresses those concerns by providing enhanced sealing strength and durability to support aggressive engine tuning.

Designed for performance enthusiasts and tuners who demand reliability under boosted conditions, the HKS head gasket helps prevent common failures associated with high-performance modifications. Whether you are upgrading your engine for street, track, or competitive use, this gasket offers peace of mind and improved engine longevity.

Key Features:

This advanced head gasket incorporates several technical improvements to ensure superior sealing and durability:

• Grommet-type design that improves sealing beyond traditional stopper-type gaskets.
• Maintains gas seal surface pressure to increase sealing limits and prevent leaks under high boost.
• Strengthened head bolts included to deliver even higher clamp force and gasket retention.
• Supports a compression ratio of 10.4, optimized for performance tuning.
• Compatible with stopper-type gaskets of various thicknesses, allowing for flexible compression ratio adjustments.
• High thickness options available to compensate for head or block machining and to reduce warping risks from elevated surface pressure.
• Engineered specifically for the FA20 engine used in Subaru BRZ, Scion FR-S, and Toyota 86 models.

Construction & Design:

The HKS head gasket features a robust grommet-type construction that enhances the sealing surface pressure, crucial for maintaining integrity under boosted conditions. This design helps to evenly distribute clamping forces and resist the common failure modes seen in high-performance FA20 engines. The inclusion of reinforced head bolts further improves the overall clamping strength, reducing the risk of gasket blowout during aggressive tuning.

Additionally, the gasket is available in multiple thicknesses, allowing tuners to adjust the compression ratio to suit their specific build and performance goals. This flexibility is especially valuable when compensating for machining work on the cylinder head or block, ensuring a precise and reliable fit.

Installation & Fitment:

The HKS Grommet Type Head Gasket is a direct replacement part designed to fit the following vehicles equipped with the FA20 engine:

• Subaru BRZ (2013–2020)
• Scion FR-S (2013–2016)
• Toyota 86 (2017–2020)

Installation requires standard engine disassembly procedures and is recommended to be performed by a professional or experienced technician. The gasket is designed to work with OEM components and does not require modifications to the engine block or head. When combined with the included strengthened head bolts, it ensures a secure and reliable seal suitable for high-performance applications.

What's Included:

• HKS Grommet Type Head Gasket
• Strengthened head bolts for improved clamping force

Ideal For:

This head gasket is ideal for:

• Performance enthusiasts upgrading their FA20 engines with turbochargers or superchargers.
• Drivers seeking enhanced reliability and durability under increased cylinder pressures.
• Tuners requiring flexible compression ratio options to optimize engine performance.
• Anyone addressing head gasket failure issues in modified Subaru BRZ, Scion FR-S, or Toyota 86 vehicles.

HKS is a Japanese company specializing in high-performance aftermarket automotive parts, including turbochargers, exhaust systems, suspension kits, and electronic control units. Their products are designed for enthusiasts seeking to enhance vehicle performance, offering reliable and precise components for various builds and driving scenarios.