Wiseco K623M84 Forged Piston Kit for 1992-2001 Honda / Acura B-Series (B16 / B18

Vehicle Fitment

• Honda B-Series engines (B16A, B18A1/B1, B18C)
• Common vehicles: 1992-2001 Honda Civic Si (B16A), 1992-2000 Integra / Acura (B18), 1997-1998 CR-V (B-series)

Features

• Forged 2618 aluminum for superior strength and durability
• ArmorGlide® low-friction skirt coating to reduce wear
• Flat-top / shallow dome crown design for various compression options
• Precision ring grooves and anti-detonation features
• Forced pin-oiling for reliable lubrication under load
• Strutted forging design enhances rigidity
• Performance-ready for high-RPM racing or tuned builds
• Comes with high-quality ring set (8400XX)

Specifications

• Bore: 84.00 mm
• Compression Height: 30.00 mm
• Wrist Pin Diameter: 21 mm
• Piston Material: 2618 forged aluminum
• Piston Weight (nominal): ~296 g
• Ring Set: 8400XX included

Included Components

• 4x forged pistons
• 4x 21 mm wrist pins
• 1x ring set (8400XX)
• Circlips / wrist-pin retainers

Product Description

The Wiseco K623M84 piston kit is built for Honda's B-series engines - such as the B16A and B18 variants - offering a reliable foundation for performance builds. Forged from 2618 aluminum, these pistons provide excellent strength and endurance for high-stress and high-RPM driving.

The design features a flat or shallow dome crown that enables versatile compression options, depending on the exact variant (B16, B18, etc.). ArmorGlide® coating helps reduce friction and wear, while strutted forging increases the structural stability of each piston under load.

With precision-machined ring grooves and a high-performance 8400XX ring set included, this kit ensures excellent sealing. Forced pin-oiling improves lubrication for the wrist pins, making this kit ideal for serious engine builds, whether street or track oriented. Proper installation - checking ring gaps, clearances, and following torque specs - is essential for long-term reliability and performance.