Wiseco PK1061 Top End Kit - 0.50mm Oversize to 100.50mm, 11:1 Compression

Bore: 100.50mm
Compression: 11:1 Compression
Sizing: 0.50mm Oversize

SPECIFICATIONS.
Displacement: 666cc.
Bore - Standard: 100.00mm.
Bore - Actual: 100.50mm.
Bore - Oversize: 0.50mm.
Stroke: 84.00mm.
Compression Ratio - Actual: 11:1.
Note: Cylinder boring required.
Note: Compression - High.
ITEM CONTENTS.
10050XS - 100.50 mm Ring Set.
4737M10050 - Yam YFM660 Raptor/Grizzly/Rhino 11:1 CR.
CW22 - ROUND WIRE PIN LOCKS 22MM (PAIR).
S655 - PistonPin 22 x 57.15mm NonChromed SW.
W6017 - TopEndGsktKit YamRaptor 660 01-05 101mm.

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:

2001-2005 Yamaha YFM660R Raptor