S&S solid lifter conversion kit with adjustable lifters for 1966-'84 HD Shovelhead engines with stock 5.330" cylinders. Converts stock hydraulic lifter to 1948-'52 style adjustable solid lifter. Includes all parts needed for converting to solid lifters: four non-adjustable steel pushrods and four adjustable lifter inserts to replace the stock hydraulic units. Includes adapters for converting 1953-' 84 style hydraulic lifters to adjustable solids. Adjuster screw in the lifter adapters