Wiseco 4967M06700 Forged Piston Kit Bore Compression Oversize - 67.00mm 13.4 1 1.50mm

The Wiseco 4967M06700 is a high-performance forged piston kit delivering a 67.00mm bore (1.50mm oversize) and 13.4:1 compression ratio with a domed piston profile engineered for 4-stroke sport motorcycle engines. Designed and manufactured in Mentor, OH, this kit is built to the tightest tolerances to deliver an optimal combination of performance, strength, and durability.

Key Features:

• Forged from high-silicon, low-expansion aluminum alloy for superior strength, reduced weight, and improved heat transfer over cast alternatives
• Dedicated forging design optimizes the strength-to-weight ratio and piston profile for maximum horsepower and torque output
• Domed piston design with 13.4:1 compression ratio for high-performance power delivery
• 67.00mm bore diameter — 1.50mm oversize, suitable for use with a re-sleeved or bored cylinder
• Floating wrist pin with 0.591 in. (15mm) pin diameter for smooth, low-friction operation
• 42.50mm stroke compatibility engineered for the specific application
• Engineered, forged, and CNC-machined in the USA for consistent quality and precise fitment

Kit Includes:

• 1 forged piston
• High-performance ring set
• Wrist pin
• Circlips

Note: This is an oversize piston kit. Cylinder boring or re-sleeving to the specified 67.00mm diameter is required prior to installation. Top-end gaskets, bearings, and sleeves are not included.