Wiseco PK1447 Top End Kit - Standard Bore 89.00mm, 12:1 Compression

Bore: 89.00mm
Compression: 12:1 Compression
Sizing: Standard Bore

SPECIFICATIONS.
Displacement: 450cc.
Bore - Standard: 89.00mm.
Bore - Actual: 89.00mm.
Bore - Oversize: STD.
Stroke: 72.00mm.
Compression Ratio - Actual: 12:1.
ITEM CONTENTS.
4942M08900 - KTM 450EXC 03-07; XC ATV 08-09 12:1 CR.
8900ZC - 89.00 mm Ring Set.
Ring - Set.
S641 - PistonPin 20mm x 1.986in. NonChromed SW.
W5509 - ROUND WIRE PIN LOCKS 20MM (PR).
W5883 - TopEnd Gasket Kit KTM/ Pol 400/ 450cc.

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:

2003-2005 KTM 450 EXC
2003-2005 KTM 450 MXC
2008-2009 KTM 450 XC
2006-2007 KTM 450 XC-F
2006-2007 KTM 450 XC-W
2008-2010 Polaris Outlaw 450 MXR