Wiseco K627M87AP 4G63/Turbo Forged Piston Set 87.00mm Bore (4-Pack)

Vehicle Fitment

• Mitsubishi 4G63 DOHC 16-valve engines - including DSM/EVO platforms (Evo 4-Evo 9, 4G63 and compatible 4G64 stroked builds)

Features

• Professional Series forged piston set engineered for high-performance 4G63 engines
• Forged 2618 aluminum construction for strength in racing and boosted applications
• ArmorGlide® skirt coating reduces friction and improves ring sealing
• Precision-machined crown and ring grooves for superior cylinder sealing
• Dish-style piston with valve reliefs for improved combustion clearance
• Performance piston ring set included for street and track use
• 22 mm floating wrist pins provided for secure pin-to-rod connection
• Designed for heavy duty and severe operating conditions

Specifications

• Part Number: K627M87AP (Wiseco forged piston kit)
• Bore Diameter: 87.00 mm (3.425")
• Compression Height: 28.87 mm (1.137")
• Piston Volume: -21.00 cc (dish top)
• Material: 2618 forged aluminum
• Piston Quantity: 4 (complete set for inline-4)
• Wrist Pin Diameter: 22 mm floating style
• Piston Ring Set: Included

Included Components

• 4x Forged pistons (Wiseco K627M87AP)
• 4x Premium piston ring sets
• 4x Floating wrist pins and retainers

Product Description

The Wiseco K627M87AP piston set is a high-performance forged piston kit designed for Mitsubishi 4G63 engines - including DSM platform and Evolution models from EVO 4 through EVO 9, as well as compatible 4G64 stroked 1400HD builds. These Professional Series pistons are crafted from 2618 aluminum forging for exceptional strength and resistance to detonation under boosted or high-load conditions, making them ideal for turbocharged street, track, or race engines where durability is critical.

Featuring an 87.00 mm bore and dish-style piston top with valve reliefs, this set helps control static compression and maintain combustion clearance in high-performance applications. The ArmorGlide® skirt coating minimizes friction and promotes excellent ring seal, while the included premium piston rings and floating 22 mm wrist pins provide a complete solution for engine builders. Whether you're assembling a rebuilt street engine or a dedicated race setup, these pistons offer the strength and performance demanded by serious 4G63 builds.