JE Pistons 291060 Forged Piston Kit for 2002-2008 Subaru WRX STI EJ257 Block

Vehicle Fitment

• 2002-2008 Subaru WRX STI (EJ257 block with EJ20 heads)
• 2002-2008 Subaru WRX (EJ255 block with EJ20 heads)
• 2002-2008 Subaru Impreza Outback Sport (EJ255 block with EJ20 heads)
• 2002-2008 Subaru Impreza RS (EJ255 block with EJ20 heads)
• 2002-2008 Subaru Impreza 2.5i (EJ255 block with EJ20 heads)

Features

• High-strength 2618 T6 forged aluminum construction
• Inverted dome/dish piston design for optimal combustion efficiency
• FSR (Forged Side Relief) forging design reduces friction and weight
• Compression ratio of 8.5:1 for balanced performance
• Designed specifically for high-performance applications
• Compatible with EJ257 block and EJ20 head hybrid setup
• Precision-machined for accurate fitment
• Individually serialized for traceability and quality assurance

Specifications

• Bore Diameter: 100.00 mm (3.937 inches)
• Compression Height: 1.209 inches
• Piston Volume: -26.40 cc
• Piston Material: 2618 T6 forged aluminum
• Compression Ratio: 8.5:1
• Wrist Pin Diameter: 0.905 inches
• Wrist Pin Length: 2.250 inches
• Includes: 4 pistons, 4 wrist pins, 4 sets of piston rings, 4 sets of wrist pin locks

Included Components

• 4x JE Pistons 291060 forged pistons
• 4x Wrist pins (0.905 inches x 2.250 inches)
• 4x Sets of piston rings
• 4x Sets of wrist pin locks

Product Description

The JE Pistons 291060 Forged Piston Kit is engineered for high-performance applications in Subaru vehicles equipped with an EJ257 engine block and EJ20 cylinder heads. This hybrid configuration is popular among enthusiasts seeking to enhance engine performance while maintaining reliability.

Manufactured from 2618 T6 high tensile forged aluminum, this piston offers superior strength to withstand the demands of high-performance driving. The inverted dome/dish piston design ensures optimal combustion efficiency, contributing to improved power output. The FSR forging design reduces friction and weight, enhancing overall engine responsiveness.

The kit includes wrist pins with a diameter of 0.905 inches and a length of 2.250 inches, designed for secure installation and durability. With a compression ratio of 8.5:1, this piston provides a balanced performance suitable for various driving conditions.

Ideal for applications ranging from street performance to motorsport, the JE Pistons 291060 Forged Piston Kit offers the durability and performance needed to achieve your engine building goals.