Wiseco 4676M08300 Piston Kit - Standard Bore 82.92mm, 8.6:1 Compression

Bore: 82.92mm
Compression: 8.6:1 Compression
Sizing: Standard Bore

SPECIFICATIONS.
Displacement: 386cc.
Bore - Standard: 83.00mm.
Bore - Actual: 83.00mm.
Bore - Oversize: STD.
Stroke: 71.50mm.
Compression Ratio - Actual: 8.6:1.
Note: Cylinder boring required.
ITEM CONTENTS.
3268XC - 83.00 mm Ring Set.
CW19 - ROUND WIRE PIN LOCKS 19MM (PAIR).
S376 - PistonPin 19mm x 2.500in. 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.

Vehicle Fitment:

2000-2004 Yamaha YFM400 Big Bear 2x4
2000-2006 Yamaha YFM400 Big Bear 4x4
1993-1999 Yamaha YFM400F Kodiak 4x4