Forged from high-silicon aluminum alloy for maximum strength and dependabilityWiseco offers a complete range of popular piston models and years for both trail and racing applicationsFormula for computing cubic centimeter displacementD = Bore Size in Inches; S = Stroke in Inches; Number = Number of CylindersD(2) x .7854 x S x N x 16.387 = CC DisplacementWISECO FEATURES PRO-LITE PISTONSDurability, longevity and increased horsepowerInnovative forging design and piston skirt provide maximum horsepower and torquePK PISTON KITSContain all the necessary components for overboring or rebuilding your top endFeature forged pistons, rings, wrist pins, circlips and top end gasket setCylinder sleeves must be purchased separatelySee price list on page???WISECO PRICINGAll Wiseco High-Performance Motorcycle Pistons are priced with rings and circlips; see price list on page ???