Wiseco 4966M10000 Piston Kit - Standard Bore 99.92mm, 9.9:1 Compression

Bore: 99.92mm

SPECIFICATIONS. Displacement: 660cc. Bore - Standard: 100.00mm. Bore - Actual: 100.00mm. Bore - Oversize: STD. Stroke: 84.00mm. Compression Ratio - Actual: 9.9:1. Skirt Coating: Moly. ITEM CONTENTS. 3937XS - 100.00 mm Ring Set. CW22 - ROUND WIRE PIN LOCKS 22MM (PAIR). S655 - PistonPin 22 x 57.15mm NonChromed SW

All Wiseco Pistons are forged from high silicon, low expansion aluminum which offers superior strength, reduced weight, improved heat transfer, and longer life. Diamond turned finish from one of the many CNC computer controlled turning centers guarantees you a perfect finish with no size variation. Wiseco pistons can be installed in any of todays cylinder bore compositions. Wisecos state-of-the-art computerized manufacturing facility is dedicated to supplying both the high-perfomance racer and recreational enthusiast with the finest forged piston available in todays market place.

This item fits the following vehicle applications:
2002-2008 fits YAM YFM660F Grizzly 4x4
2001-2005 fits YAM YFM660R Raptor
2004-2007 fits YAM YXR66F Rhino 660
2007 fits YAM YXR66F Rhino 660 Ducks Unlimited
2006-2007 fits YAM YXR66F Rhino 660 Exploring Edition
2006-2007 fits YAM YXR66F Rhino 660 Special Edition
2007 fits YAM YXR66F Rhino 660 Sport Edition