Hi-Performance GM 4L80E Intermediate Power pack Kit with ALTO Red Eagle Friction Clutches and Kolene Steels This Super High Quality Kit is made by an American Company; Alto Products! These plates are Red Eagle high performance clutch plates. These clutches are put through a process where the friction paper is saturated in a phenolic resin, cured, and then saturated a second time in a silicate. The silicate imparts high heat resistance. Red Eagle Clutches: Are designed with a softer, more resilient base paper Assure less wear against opposing steel plates Reduce the inciedence of steel plates These plates are Red Eagle high performance clutch plates. These clutches are put through a process where the friction paper is saturated in a phenolic resin, cured, and then saturated a second time in a silicate. The silicate imparts high heat resistance. So why not use what the professionals use!