Wiseco PK1020 Top End Kit - 1.00mm Oversize to 84.00mm, 10.25:1 Compression

Bore: 84.00mm
Compression: 10.25:1 Compression
Sizing: 1.00mm Oversize

SPECIFICATIONS.
Displacement: 357cc.
Bore - Standard: 83.00mm.
Bore - Actual: 84.00mm.
Bore - Oversize: 1.00mm.
Stroke: 64.50mm.
Compression Ratio - Actual: 10.25:1.
Note: Cylinder boring required.
ITEM CONTENTS.
3307XC - 84.00 mm Ring Set.
4419M08400 - Yam YFM350 Warrior/Raptor 87-13 10.25:1.
CW19 - ROUND WIRE PIN LOCKS 19MM (PAIR).
S376 - PistonPin 19mm x 2.500in. NonChromed SW.
W5746 - TopEndGsktKit Yam YFM350 Warrior/Raptor.

Contains all the necessary components for overboring or rebuilding your top end. Feature forged pistons, rings, wrist pins, circlips and top end gasket set.

Vehicle Fitment:

2007-2014 Yamaha YFM350 Grizzly 4x4 Auto
2007-2012 Yamaha YFM350 Grizzly Auto
2014 Yamaha YFM350 Grizzly Auto
2007-2012 Yamaha YFM350 Grizzly IRS 4x4 Auto
2004-2013 Yamaha YFM350 Raptor
2006-2009 Yamaha YFM350 Wolverine
1987-1995 Yamaha YFM350ER Moto-4
1995-2005 Yamaha YFM350F Wolverine 4x4
1987-1999 Yamaha YFM350FW Big Bear 4x4
1997-1999 Yamaha YFM350U Big Bear 2x4
1987-2004 Yamaha YFM350X Warrior