Wiseco Pistons 4671M07650 Forged Piston Kit Oversize - 76.5mm 020

The Wiseco 4671M07650 is a high-performance forged piston kit designed as an oversized replacement for Kawasaki 300cc ATV engines. This kit features a 76.5mm bore size (+0.5mm/.020" oversize) with an 8.6:1 compression ratio, making it ideal for performance rebuilds and bore repair applications.

Key Features:

• Forged from aerospace-grade aluminum using an exclusive forging process that increases material density and aligns grain flow for superior strength and durability
• High-silicon, low-expansion aluminum alloy provides reduced weight, improved heat transfer, and extended service life
• Diamond-turned finish from CNC computer-controlled equipment ensures perfect sizing with no variation
• 8.6:1 compression ratio optimized for reliable power and performance
• Complete kit includes piston, rings, wrist pin, and circlips

What's Included:

• One forged piston (76.5mm bore)
• Piston ring set
• Wrist pin
• Circlips (2)

Important Notes:

• Oversize piston requires cylinder boring to 76.5mm diameter
• Only Wiseco replacement rings can be used with Wiseco pistons
• Wiseco rings, clips, and wrist pins are not interchangeable with other brands
• Professional installation and proper cylinder preparation recommended

Wiseco has been the trusted choice of professional racers and performance enthusiasts for over 80 years. Forged pistons offer the extreme strength and toughness demanded by racing conditions and high-performance applications, delivering reliability that cast pistons simply cannot match.