Wiseco 40216P2 High-Performance Forged Piston Kit 66mm Oversize 12:1 Compression

The Wiseco 40216P2 is a high-performance forged piston kit engineered for racing applications. This complete piston assembly features a 66.00mm bore diameter (1.00mm oversize), 12:1 compression ratio, and 198cc displacement, making it ideal for riders seeking maximum power output and durability.

Key Features:

• Forged from high-silicon, low-expansion aluminum alloy for superior strength and reduced weight
• 66.00mm actual bore size (1.00mm oversize from standard 65.00mm)
• 12:1 compression ratio for race use only
• 198cc displacement with 57.80mm stroke
• Diamond-turned finish from CNC computer-controlled turning centers ensures perfect surface consistency
• Improved heat transfer and extended service life compared to cast pistons
• Optimized strength-to-weight ratio through dedicated forging design

Kit Includes:

• Forged aluminum piston
• 2598XC 66.00mm ring set
• S522 piston pin (15mm x 2.205 inches, non-chromed)
• CW15 round wire pin locks (15mm pair)

Wiseco pistons are manufactured in the USA using state-of-the-art forging and CNC machining equipment, ensuring consistent quality and precision. This piston kit is designed for serious racers and enthusiasts who demand the highest level of performance and reliability from their engine components.

Note: This is a race-only piston kit. Cylinder sleeving, boring, and re-plating may be required for oversize installation. Professional installation is recommended.