Small Block Ford Factory Hydraulic Roller Camshafts from Crower are designed for individuals who require more power and extended rpm range from their engines. They provide excellent low-end, midrange, and top-end power for spirited street and all out off-road driving as well as mild marine applications. These cams work well with stock or near-stock engines and drivetrains all the way up to all out racing applications with many performance levels to choose from.