HKS JDM EJ20 2.2 Stroker Kit | Engine Displacement Boost | Performance Upgrade

Overview

The HKS JDM EJ20 2.2 Stroker Kit is a carefully engineered performance upgrade designed specifically for Subaru EJ20 engines. Whether you're building a high-horsepower street machine or a dedicated race car, this stroker kit provides a reliable way to increase your engine's displacement to approximately 2.123.5ml, unlocking more torque and power across the rev range. Crafted for enthusiasts who demand both performance and durability, this kit is ideal for those looking to push their EJ20 builds to the next level without sacrificing long-term reliability.

HKS is renowned for its Japanese engineering heritage and commitment to quality, making this stroker kit a standout choice for Subaru tuners and racers. The components are precision-machined and built from forged materials, ensuring they can withstand the increased stress of a larger displacement engine. The design philosophy emphasizes not only power gains but also smooth throttle response and consistent performance, making it a practical upgrade for daily drivers and competitive racers alike. With this kit, Subaru owners can enjoy a more aggressive driving experience while maintaining the engine's integrity over time.

Features & Specifications

This HKS stroker kit is engineered for Subaru EJ20 platforms and features a bore size of 92.5mm with a stroke of 79.0mm, effectively increasing engine capacity for improved performance. Constructed from forged components, it offers enhanced strength and longevity, making it suitable for high-stress tuning applications.

• Brand: HKS
• Product: EJ20 2.2 Stroker Kit
• Part Number: Not specified
• Fitment: Subaru EJ20 engines, compatible with various WRX and STI models
• Material: Forged steel
• Finish: Machined and coated for durability
• Construction: Forged pistons, shaved crankshaft, H-section connecting rods
• Origin: Japan

• Power Gains: Potential for increased torque and horsepower (dependent on supporting mods and tuning)
• Tuning Required: Recommended for optimal performance and reliability
• CARB Status: Not specified

Key Benefits

• Increased Displacement: Boosts engine capacity to deliver more torque and power, enhancing acceleration and overall driving excitement.
• Reliable Performance: Forged pistons and durable connecting rods ensure longevity under increased stress, ideal for daily driving and racing.
• Enhanced Throttle Response: The larger displacement provides sharper throttle feel, making your Subaru more responsive in all driving conditions.
• Compatibility & Fitment: Designed specifically for EJ20 engines, ensuring precise fitment and seamless integration into your build.
• Quality Engineering: Built by HKS, a trusted name in Japanese performance tuning, guaranteeing high-quality components and craftsmanship.

What's Included

• 1× HKS EJ20 2.2 Stroker Kit (for EJ20 engines)
• Forged pistons
• Precisely shaved crankshaft
• H-section connecting rods
• Installation instructions

Installation & Compatibility

Installing the HKS EJ20 2.2 Stroker Kit is best performed by experienced technicians familiar with Subaru engine builds. The process involves disassembling the engine to replace the pistons, crankshaft, and connecting rods, requiring standard hand tools and precision measurement. While some skilled DIY enthusiasts may undertake this upgrade, professional installation is recommended to ensure proper clearances and optimal performance. Tuning is highly recommended after installation to maximize power gains and maintain engine reliability. Always verify compatibility with your specific Subaru model and year before proceeding.

• Professional Installation: Recommended
• Modifications Required: None beyond standard engine rebuild procedures
• Verify Compatibility: Confirm fitment for your specific Subaru EJ20 model and year