JE Pistons 297051 9.0:1 CR 85.5mm Piston Kit for 2001-2007 Mitsubishi Lancer Evo

Vehicle Fitment

• 2001-2007 Mitsubishi Lancer Evolution VII-IX (4G63, AWD)

Features

• Forged from 2618 T6 high tensile aluminum for extreme performance applications
• Asymmetrical Forged Side Relief (FSR) design for reduced friction and increased durability
• Compression ratio: 9.0:1, suitable for high-boost setups
• Bore diameter: 85.5 mm (3.366 inches)
• Compression height: 1.367 inches (34.7 mm)
• Piston volume: -13.30 cc
• Average piston weight: 304 grams
• Includes JE Pro Seal ring set for enhanced sealing
• Designed and manufactured in the USA

Specifications

• Material: 2618 T6 forged aluminum
• Piston head type: Inverted dome/dish
• Compression ratio: 9.0:1
• Bore diameter: 85.5 mm (3.366 inches)
• Compression height: 1.367 inches (34.7 mm)
• Piston volume: -13.30 cc
• Average piston weight: 304 grams
• Piston pin diameter: 0.866 inches (22.0 mm)
• Piston pin length: 2.250 inches (57.15 mm)
• Ring set included: Yes (JE Pro Seal)
• Forging type: FSR (Forged Side Relief)

Included Components

• 4x JE Pistons 297051
• 4x JE Piston Pins (0.866 inches x 2.250 inches)
• 4x JE Piston Pin Clips
• 1x JE Pro Seal Ring Set

Product Description

The JE Pistons 297051 Piston Kit is engineered for Mitsubishi enthusiasts seeking top-tier performance. Crafted from 2618 T6 high tensile forged aluminum, these pistons are designed to withstand extreme conditions, making them ideal for both street and track applications. The asymmetrical Forged Side Relief (FSR) design reduces friction and increases durability, while the 9.0:1 compression ratio provides optimal combustion efficiency for the 4G63 engine.

With an 85.5 mm bore and 1.367-inch compression height, these pistons are tailored for the 2001-2007 Mitsubishi Lancer Evolution VII-IX models. The kit includes JE's Pro Seal ring set, ensuring a complete overhaul for your engine. Whether you're building a daily driver or a competition-ready setup, the JE Pistons 297051 Piston Kit offers the reliability and performance you demand.