Manley Performance Pistons
2017–2020 Toyota 86 / 2013–2020 Subaru BRZ / 2013–2016 Scion FR-S
632605CE-4
Overview:
Manley Performance Pistons are engineered for enthusiasts and professional engine builders seeking extreme durability and enhanced performance for their Toyota 86, Subaru BRZ, or Scion FR-S. This +0.5mm bore piston set features a -11.4cc dish design, optimized for improved combustion and power delivery. Crafted from high-strength 2618 alloy forgings, these pistons provide superior reliability under demanding conditions, making them ideal for both spirited street driving and track applications.
With proven cam and barrel skirt profiles, these pistons reduce friction and wear while maintaining excellent cylinder wall protection. The set includes premium rings and wrist pins, ensuring a complete upgrade that supports increased horsepower and engine longevity.
Key Features:
Designed with precision and durability in mind, these pistons incorporate advanced materials and manufacturing techniques to deliver outstanding performance benefits:
- 2618 Alloy Forgings: Manufactured from domestic 2618 alloy, known for its exceptional strength and thermal resistance, ideal for high-performance engines.
- Chrome Moly Wrist Pins: Standard Chrome Moly wrist pins provide excellent toughness; select SKUs offer upgrades to 9310 and Turbo Tuff/DLC alloys for enhanced durability.
- 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: Optimized skirt design reduces friction and wear on cylinder walls while supporting increased power.
- 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 reliable sealing and performance.
- 11.4cc Dish Design: Enhances combustion chamber dynamics for improved efficiency and power potential.
- +0.5mm Bore Size: Provides precise fitment for engines requiring an overbore upgrade, maintaining optimal clearances.
- Moly Skirt Coatings: Applied on select part numbers to reduce friction and extend piston life.
Construction & Design:
These pistons are forged from premium 2618 aluminum alloy, a material favored in high-performance applications for its strength and heat tolerance. The forging process ensures a dense, uniform grain structure that withstands the rigors of boosted or high-RPM engines. The cam and barrel skirt profiles are carefully engineered to reduce piston slap and cylinder wear, contributing to smoother operation and longer engine life.
Manley’s unique manufacturing fixturing allows critical machining steps to be completed in a single setup, guaranteeing precise alignment and dimensional accuracy. This attention to detail results in pistons that maintain excellent ring seal and consistent performance under extreme conditions.
Installation & Fitment:
This piston set is designed specifically for the following vehicles and model years:
- Toyota 86 (2017–2020)
- Subaru BRZ (2013–2020)
- Scion FR-S (2013–2016)
The +0.5mm bore size requires the engine block to be bored accordingly to ensure proper fitment. Installation should be performed by a professional engine builder or technician familiar with high-performance engine assembly. These pistons are a direct replacement for the factory components when the appropriate bore size is achieved.
What's Included:
- Set of four forged 2618 alloy pistons with -11.4cc dish design
- Premium piston rings matched to the piston design
- Chrome Moly wrist pins
Ideal For:
This piston set is ideal for enthusiasts and professional builders upgrading their Toyota 86, Subaru BRZ, or Scion FR-S engines for increased power and durability. Whether you are building a high-boost turbo setup, a high-RPM naturally aspirated engine, or a track-focused build, these pistons provide the strength and precision needed to handle demanding conditions while maintaining reliability.
