Wiseco K568M88 Forged 88 mm -9 cc Pistons for Honda K-Series

Vehicle Fitment

• Honda / Acura K20A / K20Z (2.0 L K-Series)
• Honda K24 (when used with K20A/Z head swap)

Features

• Forged from 2618 aerospace-grade aluminum for high strength and fatigue resistance
• ArmorGlide® skirt coating for reduced friction and smoother operation
• Strutted forging design to enhance rigidity in high-stress conditions
• Dished -9 cc crown to lower compression for forced induction or boosted builds
• Precision CNC-machined ring grooves and anti-detonation relief
• Forced-pin oiling for reliable lubrication at high RPM
• Includes high-performance piston ring set (8800XX or equivalent)
• 22 mm floating wrist pins for strong and stable piston-to-rod connection

Specifications

• Bore: 88.00 mm
• Compression Height: 30.00 mm
• Piston Volume / Dish: -9.00 cc
• Wrist Pin Diameter: 22 mm (0.866")
• Piston Material: Forged 2618 aluminum
• Piston Weight: ~312 g each (depending on variant)
• Ring Set: Includes 8800XX-style rings

Included Components

• 4x forged pistons (88 mm, -9 cc)
• 4x 22 mm floating wrist pins
• 4x circlips / locks for the wrist pins
• 4x high-performance piston ring sets

Product Description

The Wiseco K568M88 piston kit is designed for high-performance Honda K-series engines, particularly the K20A and K20Z. With an 88 mm bore and dished -9 cc design, these pistons are ideal for aggressive builds that may involve forced induction or when a lower static compression ratio is desired.

Crafted from 2618 alloy, these forged pistons offer excellent strength, thermal resilience, and fatigue resistance. The ArmorGlide® coating on the skirts reduces friction and helps prevent seizure, while the strutted forging structure provides additional rigidity under high load. The kit also includes a matched ring set and 22 mm floating wrist pins to ensure reliable sealing and durability.

To install properly, it's essential to check and set bore-to-wall clearance, ring gap, and deck height. These pistons suit both high-strung race engines and performance street builds where strength, low compression, and reliability are required.