Crane Cams' mechanical roller lifters are used by motorsports' most famous and successful professional racing engine builders. Both Standard Design and ultra lightweight Pro-Series mechanical roller lifters are available. Crane roller lifters are made completely "in-house" in our Daytona Beach facilities and are carefully hand-assembled, checking for fit and function to insure you of the finest, strongest, most durable roller lifters available. Crane mechanical roller lifters are the strongest, most durable available for engines used in competition or for "serious" street engines. Street engine use requires periodic valve lash adjustment. Mechanical Roller Applications Racing's strongest, most popular roller lifters! Crane roller lifters have won more races and taken more championships than any other roller lifters made. CNC machined for accuracy.Pit Stop USA offers Crane Cams Roller Lifter Set - SB Chevy - Horizontal Bar w/ Standard.842" Diameter - Set of 16 11515-16 at low everyday prices. Be sure to check out all of our products from Crane Cams including Crane Cams Roller Lifters - Small Block Chevy.