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Manley 79mm +4mm Stroker 92mm STD Bore Piston Set with Rings | Subaru WRX (98+) EJ205

Manley 79mm +4mm Stroker 92mm STD Bore Piston Set with Rings | Subaru WRX (98+) EJ205

SKU:620000C-4

In stock

Regular price $699.23 USD
Regular price $760.03 USD Sale price $699.23 USD
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The Manley Platinum Series pistons are high-performance forged components designed specifically for the Subaru WRX EJ205 engine from 1998 and onwards. Crafted from 2618 alloy, these pistons offer exceptional strength and durability for demanding applications. They feature proven cam and barrel skirt profiles, moly skirt coatings on select part numbers, and tool steel wrist pins, ensuring reliable operation under high-stress conditions. These pistons are engineered to deliver improved performance, enhanced thermal stability, and consistent ring sealing, making them ideal for both street and track use. Their robust construction and precision manufacturing make them a preferred choice among professional engine builders and tuners seeking superior quality components.

Designed to fit 1998+ Subaru WRX models equipped with the EJ205 engine, these 79mm +4mm stroker pistons with a 92mm standard bore are a direct replacement upgrade for stock pistons. They are suitable for builds requiring increased displacement and performance, especially in high-performance or turbocharged applications. Installation involves standard piston replacement procedures, and the set includes pistons and rings. These pistons are optimized for street, track, and performance tuning scenarios, providing reliable power gains and longevity for modified engines. Compatibility with specific engine configurations should be verified prior to installation.

Overview

Manley Performance Manley 98+ Subaru WRX (EJ205) 79mm +4mm Stroker 92mm STD Bore 8.5:1 Dish Piston Set with Rings

Fits 1998 and newer Subaru WRX with EJ205 engine

Part #: 620000C-4

Overview

Designed for high-performance Subaru WRX enthusiasts and professional engine builders, this piston set is engineered to support increased displacement and power output. Crafted with precision, these pistons are ideal for those seeking durability, reliability, and enhanced performance in their turbocharged engines. Whether you're building a stroker motor or upgrading your existing setup, this set provides the quality and consistency needed for demanding applications. These pistons help optimize combustion efficiency and support higher power levels while maintaining excellent durability under high-stress conditions. They are suitable for both street and track use, offering a reliable foundation for your engine build.

Key Features

Built with 2618 alloy forgings for superior strength and thermal stability, these pistons feature proven cam and barrel skirt profiles designed to reduce friction and improve stability during high RPM operation. The moly skirt coatings on select parts minimize wear and enhance longevity, while the tool steel wrist pins provide added durability. The set includes pistons with a 79mm bore, +4mm stroke, and a compression ratio of 8.5:1, making it ideal for stroker builds that aim to increase displacement and torque. The platinum series finish ensures high-quality manufacturing standards, and the design supports efficient heat dissipation, helping your engine maintain optimal operating temperatures during intense driving.

Construction & Design

These pistons are crafted from high-grade 2618 aluminum alloy, known for its excellent strength-to-weight ratio and thermal properties. The precision-machined profiles and moly skirt coatings contribute to reduced friction and wear, ensuring consistent performance over many miles. The tool steel wrist pins are engineered for maximum durability and secure fitment, supporting high-stress engine conditions.

Driving Feel & Feedback

This piston set is designed to support increased displacement and power, contributing to a more responsive throttle and improved acceleration. The robust construction helps maintain engine stability and smoothness, even under high load, providing a confident driving experience whether on the street or the track.

Installation & Fitment

Professional installation is recommended to ensure proper clearance and assembly. These pistons are designed specifically for Subaru WRX models with the EJ205 engine, fitting 98+ models with a 79mm bore and +4mm stroke configuration.

What’s Included

The package includes a complete set of pistons with rings, wrist pins, and necessary hardware for a comprehensive upgrade or rebuild.
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