Manley Subaru EJ257 99.75mm +.25mm Bore 8.5:1 Dish Platinum Series Piston Set with Rings
$819.99
Our signature "Platinum Series" pistons feature 2618 alloy forgings, proven cam and barrel skirt profiles, tool steel wrist pins, and moly skirt coatings on select part numbers. Join the ranks of professional engine builders and tuners who rely on Manley pistons for superior performance and durability.
- Chrome Moly Wrist Pins: Premium Chrome Moly wrist pins come standard with our Standard Series Pistons. For select SKUs, we offer wrist pin upgrades to 9310 and Turbo Tuff/DLC alloys, providing additional durability.
- Unique Fixturing: Manley's unique fixturing allows for skirt turning and ring groove machining in a single operation, ensuring ultimate ring groove to skirt squareness.
- Exacting Ring Lands and Grooves: We adhere to strict standards for piston ring lands and grooves, resulting in enhanced ring seal and more power.
- Cam and Barrel Profiles: Our pistons boast cam and barrel (skirt) profiles that generate substantial power while being gentle on cylinder walls.
- 2618 Alloy Forgings: We use domestic 2618 alloy forgings, ensuring superior strength and performance.
The Manley Performance Subaru EJ257 99.75mm +0.25mm Bore Platinum Series Piston Set is engineered for high-performance applications, delivering exceptional strength and reliability. Crafted from premium 2618 alloy forgings, these pistons provide superior durability and thermal stability under demanding conditions. Designed with proven cam and barrel (skirt) profiles, they generate substantial power while minimizing stress on cylinder walls, making them ideal for turbocharged engines and high-performance builds. The integrated moly skirt coatings on select part numbers enhance wear resistance, extending piston longevity for professional engine builders and tuners alike.
Manley's unique fixturing process allows for precise skirt turning and ring groove machining in a single operation, ensuring perfect ring land and groove squareness for optimal sealing and peak performance. The pistons feature exacting ring lands and grooves to improve ring seal, which translates into increased compression and horsepower. Equipped with Chrome Moly wrist pins as standard, with optional upgrades to 9310 and Turbo Tuff/DLC alloys, these pistons are built to withstand high-stress environments and intensive tuning.
Designed for serious enthusiasts, the Manley Platinum Series piston set offers a combination of innovative manufacturing, premium materials, and proven profiles to support high horsepower applications. Whether for rebuilding a turbocharged Subaru EJ257 or enhancing an existing engine, these pistons provide the performance margin and durability required for competitive racing or street performance upgrades. Durable, reliable, and engineered for excellence, the Manley Performance Subaru EJ257 pistons are the choice for professional engine builders seeking maximum power and longevity.
Features:
- 2618 alloy forgings for strength and durability
- Proven cam and barrel (skirt) profiles for power and engine longevity
- Moly skirt coatings on select part numbers for enhanced wear resistance
- Unique fixturing allows for precise skirt turning and ring groove machining
- Exacting ring lands and grooves for improved ring seal and compression
- Chrome Moly wrist pins standard, with optional 9310 and Turbo Tuff/DLC upgrades