Hydraulic kit, .005 inch oversize O.D. tappets. Crane is now manufacturing roller tappet assemblies for the 74ci and 80ci Shovelhead all years. Both hydraulic and solid versions are available, featuring precision machined and heat treated steel tappet bodies. Due to the lower pushrod to cam follower position, Crane tool #60713 must be used for installation. Crane's adjustable Chrome-Moly steel pushrods are included with each set of tappets to ensure that a matched assembly will provide performance and durability.No longer available from dealer