Wiseco K542M82 Forged 82 mm B-Series Piston Kit for 90-01 Honda/Acura B-Series

Vehicle Fitment

• 1990-2001 Acura Integra (B18A / B18B / B18C, 1.8L)
• 1994-1997 Honda Civic del Sol VTEC (B16A / B16A3, 1.6L)
• 1999-2000 Honda Civic Si (B16A, 1.6L)

Features

• Forged from 2618 aerospace-grade aluminum for high strength and reduced weight
• ArmorGlide® skirt coating reduces friction and improves piston movement
• Fully machined crown with anti-detonation groove
• Precision ring grooves for superior sealing and reduced blow-by
• Optimized valve pockets for high-lift cams and oversized valves
• Offset wrist pin reduces piston slap and noise
• Lightweight design tailored for high-rev performance
• Complete kit includes piston rings and wrist pins for a rebuild-ready package

Specifications

• Bore: 82.00 mm
• Compression Height: 29.85 mm
• Piston Dish Volume: -2.40 cc
• Material: 2618 forged aluminum
• Wrist Pin Diameter: 21 mm
• Ring Set: included (top, second, and oil rings)
• Stroke: varies by engine (77.4-89 mm)
• Piston Weight: ~281 g
• Front/Rear: installed per cylinder bank configuration

Included Components

• 4x forged pistons (K542M82)
• 4x wrist pins
• 4x piston ring sets
• 4x wrist pin locks

Product Description

The Wiseco K542M82 is a high-performance forged piston kit designed for Honda and Acura B-series engines. Constructed from 2618 aerospace-grade aluminum, these pistons provide exceptional strength while remaining lightweight, making them ideal for high-revving, high-stress applications. The ArmorGlide® coating on the skirts reduces friction, ensuring smooth operation and longer component life.

The fully machined crown with anti-detonation groove and offset wrist pin design reduces piston slap and improves combustion stability. Precision ring grooves ensure optimal sealing and minimal blow-by. The pistons feature valve pockets optimized for high-lift cams and oversized valves, suitable for performance engine builds.

This complete kit includes four forged pistons, wrist pins, locks, and piston rings, providing everything needed for a full rebuild. Compatible with Honda Civic B16A, del Sol VTEC, and Acura Integra B18A/B/C engines, this kit is a versatile solution for enthusiasts seeking strength, reliability, and high-performance gains.