Wiseco 4 Stroke Forged Series Piston Kit, 80.00 MM Bore, 12:1 CR

This kit contains everything needed for a top-end rebuild. The pistons are precision machined on state-of-the-art CNC equipment using the same low-expansion, low-friction piston alloy as major Japanese engine manufacturers. The kit includes high-performance ring kits and alloy pins for extended life and sustained power. Dedicated forgings are used for a superior strength-to-weight ratio. Two-stroke kits feature Pro-Lite pistons with optimal cam shape for peak HP and service life. Four-stroke kits have 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. Four-stroke race applications include Wiseco's Armor Glide skirt coating for reduced friction and noise, contributing to increased horsepower. Each piston is built from race-proven designs.