Wiseco K572M87 Forged 87 mm Dome Pistons for Honda H22 / Prelude

Vehicle Fitment

• Honda Prelude H22 (1992-2001)
• Honda Accord / Prelude H22A (2.2 L DOHC 16-valve)

Features

• Forged from 2618 aerospace-grade aluminum for strength and durability
• ArmorGlide® coated skirts to reduce friction and improve longevity
• Dome crown design (~+7 cc) to increase compression
• Strutted forging for enhanced rigidity under high RPM
• Pre-gapped high-performance piston ring set included
• Floating 22 mm wrist pins for solid rod-to-piston connection
• Precision CNC machining for consistent ring groove geometry
• Optimized compression height for tight deck clearance

Specifications

• Bore: 87.00 mm
• Compression Height: 31.00 mm
• Dome Volume: ~+7 cc
• Wrist Pin Diameter: 22 mm
• Piston Material: Forged 2618 alloy
• Piston Weight: ~333 g each
• Compression Ratio: ~11.5:1 for H22A application
• Ring Set: 8700XX

Included Components

• 4x forged pistons (87 mm, +7 cc dome)
• 4x 22 mm floating wrist pins
• 4x circlips / locks for wrist pins
• 4x performance piston ring sets (8700XX)

Product Description

The Wiseco K572M87 piston kit is designed for high-performance Honda H22 engines, particularly in Prelude and Accord applications. Made from 2618 forged aluminum, these pistons offer exceptional strength and durability, making them suitable for street builds as well as high-revving or tuned motors.

Featuring a +7 cc dome, these pistons raise compression to around 11.5:1 (depending on head and gasket), delivering better throttle response and power delivery. The ArmorGlide® coating on the skirts reduces friction and helps with smooth operation, while the strutted design improves structural integrity under load.

With a matched ring set and 22 mm floating wrist pins, the K572M87 kit provides reliable sealing and solid piston-to-rod connection. Ideal for engine rebuilds or performance upgrades, this kit demands careful installation - check bore clearance, ring gaps, and deck height to ensure optimal performance.