Wiseco K587M90 Forged 90 mm -10 cc Pistons for Nissan KA24DE / 240SX

Vehicle Fitment

• Nissan KA24DE (2.4 L, DOHC 16-valve)
• Nissan 240SX (1991-1998) with KA24DE engine

Features

• Forged from 2618 aluminum for high strength and long-lasting durability
• ArmorGlide® skirt coating reduces friction and wear
• -10 cc dished crown to optimize compression (~10.0:1)
• Strutted forging design for enhanced rigidity
• Fully machined crown with precision ring grooves
• Forced-pin oiling for reliable lubrication at high RPM
• Includes matched high-performance piston ring set
• 21 mm floating wrist pins for strong piston-to-rod connection

Specifications

• Bore: 90.00 mm
• Compression Height: 33.94 mm
• Piston Dish Volume: -10 cc
• Estimated Compression Ratio: ~10.0:1
• Wrist Pin Diameter: 21 mm
• Piston Material: Forged 2618 aluminum
• Piston Weight: ~364 g each
• Ring Set: 9000XX

Included Components

• 4x forged dished pistons (90 mm, -10 cc)
• 4x 21 mm floating wrist pins
• 4x circlips / locks
• 4x high-performance piston ring sets (9000XX)

Product Description

The Wiseco K587M90 piston kit is a high-performance forged solution for Nissan KA24DE engines, including 240SX models. With a 90 mm bore and -10 cc dished crown, it delivers an approximate compression ratio of 10.0:1, making it ideal for performance or mildly boosted builds.

Constructed from 2618 aluminum, these pistons provide excellent strength and durability. ArmorGlide® coated skirts reduce friction and wear, while strutted forging increases structural integrity. Forced-pin oiling ensures consistent lubrication even at high RPMs.

The kit comes with a matched 9000XX ring set and 21 mm floating wrist pins, providing a complete assembly solution. Proper verification of bore-to-wall clearance, ring gaps, and deck height is recommended during installation to achieve maximum performance and longevity.