421cc Athena Package

This package comes with:

• New Athena cylinders 68mm bore. 
• New 573 Wiseco pistons. 
• New 4mil Hot Rods long rod (58 x 115) crank, trued, pinned, and double welded with bearings. 
• All new seals and gaskets.
• All new water plugs, head studs, and the correct domes.

Horse Power: HP should end up between 60-80. This depends on carbs, exhaust, compression & dome size, and port work.

Recommended Carbs: Keihin PWK 35mm. Stock carburetors do not have enough air flow for the top end. Carbs are not included in this package.

Best Suited For: This package works well in the sand dunes and on the trails. We can customize this package to fit your preference.