Manley Performance 15+ Subaru FA20 WRX 86.5mm Bore Dish Piston Set with Rings – Part Number 632705C-4

Description

The Manley Performance 15+ Subaru FA20 WRX piston set features advanced engineering designed for high-performance applications. Crafted from high-grade 2618 alloy forgings, these pistons deliver exceptional strength and durability under demanding conditions. The precise cam and barrel (skirt) profiles optimize power output while minimizing stress on cylinder walls, making them ideal for the serious tuner or professional engine builder.
Constructed with premium chrome moly wrist pins, the pistons ensure reliable performance and longevity. For select part numbers, optional wrist pin upgrades to 9310 and Turbo Tuff/DLC alloys are available, providing even greater durability for high-stress environments. The pistons feature meticulously engineered ring lands and grooves that enhance sealing, improve compression, and boost overall engine efficiency. Manley’s unique fixturing technology allows for efficient skirt turning and ring groove machining in a single operation, ensuring precise ring-to-skirt squareness for optimal sealing.
This piston set is designed with a 86.5mm bore and a 10:1 compression ratio, suitable for high-performance Subaru FA20 engines. It includes dished pistons with rings, facilitating improved combustion efficiency and power output. Ideal for engine builders seeking reliable, race-ready components, these pistons adhere to strict manufacturing standards, ensuring consistent quality and performance. Please note that this product is not CARB-approved and requires acknowledgment of this status before purchase. Whether for street or track use, the Manley 15+ Subaru FA20 WRX piston set offers a combination of strength, precision, and performance that meets the demands of modern high-performance engines.

Features:

• 2618 alloy forgings for superior strength and durability

• Cam and barrel (skirt) profiles optimized for power and cylinder wall safety

• Chrome moly wrist pins included; optional upgrades available

• Exacting ring lands and grooves for improved sealing and compression

• Unique fixturing allows for efficient skirt turning and ring groove machining