Wiseco 6571M86 Pro Tru Sport Compact Forged Piston Stroker - 86mm 4G63 4G64

The Wiseco 6571M86 is a Pro Tru Sport Compact Series forged replacement piston designed for the Mitsubishi 4G63 engine with a 100mm 4G64 stroker configuration. Featuring an 86mm bore diameter and a turbo dish design with a -21cc volume and 1.130" compression height, this piston delivers the precision and durability that performance engine builders demand.

American-Made Forged Construction:

• Forged and CNC-machined in Mentor, Ohio by skilled craftsmen using state-of-the-art forging presses
• Dedicated forgings specific to the final piston shape result in a piston that is stronger and lighter than industry standards
• Forged aluminum construction built to withstand the demands of turbocharged sport compact engines
• Dish piston design with -21cc volume for precise compression ratio tuning

Ring & Pin Package Included:

• Plasma moly 1/16", 1/16", 3/16" pre-gapped ring package included (recommended ring set: 8600XX)
• Ring package provides excellent combustion seal, reduced friction, and extended service life
• Includes .200" wall tool steel wrist pins for added strength under high-boost conditions
• Sold as an individual/replacement piston

Pro Tru Sport Compact Advantage:

• Available in a variety of volumes, allowing the engine builder to dial in the exact compression ratio needed
• Engineered with experience drawn from decades of race-winning sport compact piston development
• Designed to handle the rigors of turbocharged, high-performance builds

The Wiseco 6571M86 is the ideal choice for builders seeking a high-quality, American-forged piston at a strong value price point for 4G63/4G64 stroker applications. Rings and pins are included.