Wiseco Piston Kit - 85.00 Mm - Polaris 400 Atv 675M08500

• Forged from high-silicon aluminum alloy for maximum strength and dependability • Wiseco offers a complete range of popular piston models and years for both trail and racing applications • Durability, longevity and increased horsepower • Innovative forging design and piston skirt provide maximum horsepower and torque • Features forged pistons, rings, wrist pins, and circlips • These 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 longer • Each piston is E-Coated on the crown, ring grooves, and pin bore, for maximum wear resistance and protection from micro-welding, galling, and detonation • GP Series parts generally have less machining on the outside, which helps seal up the bore for increased compression • Additionally, boost ports are removed for a more predictable powerband and increased pull on the top end • Cylinder 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. - Polaris Sportsman 400 4x4 (2002, 2003, 1996, 2001, 1995); Polaris Sportsman 400 L 4x4 (1997)