Manley Performance 86mm STD Bore 10:1 Dish Piston
2017–2020 Toyota 86 / 2013–2020 Subaru BRZ / 2013–2016 Scion FR-S
632600CB-1
Overview:
The Manley 86mm STD Bore 10:1 Dish Piston is a high-performance forged piston designed specifically for the Toyota 86, Subaru BRZ, and Scion FR-S models within the specified year ranges. Crafted for enthusiasts and professional engine builders alike, these pistons deliver exceptional strength, durability, and reliability for naturally aspirated or mildly boosted applications.
Whether you are upgrading your engine for spirited street driving, track use, or tuning projects, these pistons provide the foundation for improved power and engine longevity. With Manley’s signature attention to detail and quality, you’ll get a precision-engineered component that supports enhanced combustion efficiency and reliable operation under demanding conditions.
Key Features:
Manley Performance pistons incorporate advanced materials and manufacturing techniques to ensure superior performance and durability. Key features include:
- 2618 Alloy Forgings: Made from domestic 2618 alloy, these forgings offer excellent strength and fatigue resistance for high-performance engines.
- Chrome Moly Wrist Pins: Standard Chrome Moly wrist pins provide robust connection strength. Optional upgrades to 9310 or Turbo Tuff/DLC wrist pins are available for enhanced durability in extreme applications.
- Exacting Ring Lands and Grooves: Precision-machined ring lands and grooves improve ring seal, reducing blow-by and increasing power output.
- Cam and Barrel Skirt Profiles: Designed to maximize power while minimizing cylinder wall wear, these profiles balance performance and longevity.
- Unique Fixturing Process: Manley’s patented fixturing allows skirt turning and ring groove machining in a single operation, ensuring perfect ring groove to skirt squareness for optimal piston performance.
- 10:1 Compression Ratio: The dished piston design supports a 10:1 compression ratio, ideal for balanced power and reliability in tuned naturally aspirated or forced induction setups.
Construction & Design:
These pistons are forged from premium 2618 aluminum alloy, known for its superior strength and thermal stability compared to cast pistons. The forging process enhances grain structure, resulting in pistons that withstand high cylinder pressures and temperatures.
The cam and barrel skirt profiles are carefully engineered to reduce friction and wear on cylinder walls, contributing to longer engine life and consistent performance. The moly skirt coatings on select part numbers further reduce friction and improve piston-to-cylinder wall interaction.
Manley’s unique machining fixturing ensures that the ring grooves are perfectly square to the piston skirt, which is critical for maintaining ring seal and preventing premature wear.
Installation & Fitment:
This piston is a direct fit replacement for the following vehicles:
- 2017–2020 Toyota 86
- 2013–2020 Subaru BRZ
- 2013–2016 Scion FR-S
Designed to match the factory bore size of 86mm, these pistons fit standard bore engines and maintain the original compression ratio with a 10:1 dish design. Installation requires standard engine assembly procedures and proper ring fitting. No modifications to the block or other components are necessary when used within the intended applications.
What's Included:
- Single Manley forged 86mm STD bore 10:1 dish piston
- Chrome Moly wrist pin (standard)
- Precision-machined ring lands and grooves
Ideal For:
- Performance enthusiasts upgrading their Toyota 86, Subaru BRZ, or Scion FR-S engines
- Engine builders seeking durable, high-strength pistons for naturally aspirated or mild forced induction setups
- Track and street drivers requiring reliable pistons that maintain factory compression ratios
- Tuners aiming for improved power and engine longevity with quality forged components
