Description
Top End Piston Kits. Wiseco’s complete top end Piston Kits are offered for nearly every popular application in the powersports market. These kits contain everything you need to complete your rebuild the right way, the first time. High quality parts specifically chosen by us to match our forged pistons are included in this kit for easy one stop shopping. • 4-stroke kits feature a ‘race-ready’ dome finish with smooth edges for improved combustion flow. Horizontal slot-pin oiling reduces friction and provides scuff resistance, along with a pressure seal groove for maximum ring seal. • Most PK/SK/WK/VT kits from Wiseco feature a complete top end gasket kit that gives you everything you need to complete your rebuild from premium materials. • 4-stroke race applications feature Wiseco’s Armor. Glide™ skirt coating to provide reduced friction and noise to contribute to increased horsepower. • Dedicated forgings used for superior strength to weight ratio utilizing aerospace alloy. • High Performance ring kit and alloy pin included with each piston kit for extended life and sustained power.
- Racing Choice Pistons are 1 ring, 2-Stroke or 2 ring, 4-Stroke with reduced product weight and friction as well as increased power and throttle response
- Note that service intervals may be increased over conventional Wiseco Pistons
- 2-Stroke Pro-Lite Pistons feature lightweight forging for instant throttle response and maximum torque
- Computer engineered piston skirt profiles provide minimal cylinder wall friction
- Anti-detonation grooves and new ring land diameter eliminates ring blow-by while maximizing engine performance
- Piston kit includes pistons, rings, wrist pins and circlips
- Note that oversize requires cylinder sleeving and top end bearing is not included in kits
- 4-Stroke Pistons feature dedicated forging for lightweight and superior strength
- Race-ready dome design provides improved combustion flow and armor glide skirt coating provides reduced friction (racing applications only)
- Piston kit includes piston, rings, wrist pin and circlips
- Note that oversize requires cylinder sleeving

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