Edelbrock part #22015 Rollin' Thunder camshaft kit is designed for 1957-86 small-block Chevy V-8 applications. This complete cam kits include an Edelbrock Rollin' Thunder hydraulic roller camshaft, hydraulic roller lifters and pushrods. The Rollin' Thunder camshaft kit is ground specifically for use with the corresponding Performer or Performer RPM manifold and cylinder heads. However, Rollin' Thunder camshaft package may also be used with other components designed to operate in a similar RPM range.