PISTON WISECO YAMAHA

High-Performance Piston KitForged 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 applicationsDurability, longevity and increased horsepowerInnovative forging design and piston skirt provide maximum horsepower and torqueFeatures forged pistons, rings, wrist pins, and circlipsThese high-tech piston designs offer maximum compression ratios, ultra-stiff strutted forgings, and titanium nitride-coated rings, which all add up to more power that is sustained longerEach piston is E-Coated on the crown, ring grooves, and pin bore, for maximum wear resistance and protection from micro-welding, galling, and detonationGP Series parts generally have less machining on the outside, which helps seal up the bore for increased compressionAdditionally, boost ports are removed for a more predictable powerband and increased pull on the top endCylinder sleeves must be purchased separately.Service intervals may be increased with Racer's Choice pistons over conventional Wiseco pistons, and are for expert racers and tuners only.Piston is electra coated. Does not have an intake window. Is pinned on centerline. Has a longer skirt than stock.