Wiseco's high-tech manufacturing ensures greater operating strength and lower expansion at high temperaturesKits include forged pistons with ArmorGlide™ coated skirts, rings, retainer clips, and chrome piston pinsTwin Cam pistons have ArmorPlating which improves ring seal, eliminates ring micro-welding, and improves the piston's ability to defend against detonation damagePistons are made in the USAWiseco pistons that use VM-rings can only be fitted with Wiseco VM-rings Wiseco pistons that use XC-rings can only be fitted with Wiseco XC-rings.