Manley 03-06 Evo 8/9 (7 Bolt 4G63T) 85mm STD Bore 8.5:1 Dish Pistons w/ RingsAbout Manley PerformanceIn March, 1966, Manley Speed Equipment, Inc. was founded by Hank Manley shortly after his graduation from Brown University. His interest in performance and racing traced back to 1960 when at age seve