Cams designed as bolt-in cam for 88'', 95'', 96'' and 103'' engines with compression ratios below 9.7:1Kit includes camshafts with inner gears, outer cam drive gear kit and camshaft installation kit: gearcover gasket, bearings, oil passage block off kit, retaining ring. o-ring and instructionsStock pushrods and valve springs are acceptableStrongest from 3000-5500 RPMMade in the USA