Manley 620010C-4 Platinum Series Pistons for EJ205 93mm +1.0mm Subaru WRX

Vehicle Fitment

• Subaru WRX with EJ205 engine (typically 2.0L, 1998-2005 EJ205)

Features

• Platinum Series forged pistons engineered for high-performance builds
• Made from high-strength 2618 forged aluminum for durability and heat resistance
• Dish piston design with -16 cc dome volume for controlled compression
• Offset wrist pin for quieter start-up and optimized reciprocating balance
• Comes complete with premium chrome moly wrist pins and round wire locks
• Includes top-quality piston rings set for superior ring seal
• Optimized for stroked 79 mm crankshaft and +1.0 mm oversized bore
• Enhanced piston skirt profile to reduce friction and improve longevity

Specifications

• Material: 2618 forged aluminum
• Bore size: 93.00 mm (+1.0 mm oversized fitment)
• Compression height: 1.209 in
• Stroke: 79 mm (stroked configuration)
• Rod length: 5.137 in
• Piston weight: ~370 g each
• Dome volume: -16 cc (dish piston type)
• Compression ratio: ~8.5:1 optimized for boosted or high-performance tuning

Included Components

• 4x Forged aluminum pistons (Platinum Series)
• 4x Piston rings (premium quality multi-ring set)
• 4x Premium chrome moly wrist pins
• 4x Round wire locks for secure ring retention

Product Description

The Manley 620010C-4 Platinum Series Pistons kit is a premium forged piston set engineered for high-performance Subaru EJ205 engines, especially builds featuring a stroked 79 mm crankshaft and a +1.0 mm oversized bore. Built from high-strength 2618 aluminum alloy, these pistons are designed to withstand increased loads, heat, and stress typical of boosted or racing engines, while maintaining reliability and longevity. The dish piston design yields a controlled compression ratio near 8.5:1 - ideal for turbocharged, high-boost applications where detonation resistance and durability are critical.

This complete set includes all necessary wrist pins, rings, and wire locks, making it a comprehensive solution for engine builders and performance enthusiasts looking to upgrade their stock pistons. The offset wrist pin and machined skirt profile help reduce friction and noise while improving balance throughout the RPM range. Whether you're rebuilding a WRX EJ205 for street performance or motorsport use, the Manley 620010C-4 kit offers the strength and precision needed for serious engine builds.