Wiseco Complete Bottom End Kit

Wiseco crankshafts will be supplied with premium main bearings and a complete bottom end gasket kit, including all seals and gaskets needed to do the job.

Kit Includes

• 1 Crankshaft
• 1 Wiseco complete gasket kits
• Wiseco Main Bearings

Special Notes:
The '03-04 WR450F crankshaft will bolt into a '04-08 YFZ450 engine without case modification. In order for the conversion to work you must purchase a 03-04 WR/YZ Piston.  You will also need to purchase YFZ450 bottom end gaskets separately as some gaskets that come with the WR450F kit will not work, and the others are not recommended.  The WR450F crank is lighter than the 04-09 crankshaft and is 1mm longer than the '04-05 YFZ factory cranks. If you have questions, please contact us.