Adjustable pushrods. Used as stock replacement for use with OEM hydraulic units. Pushrod sets are manufactured of 7/16" O.D. chromoly steel tubing with pressed-in and heat treated steel ends. This combination provides maximum strength and durability, regardless of performance application. Upgraded replacement for OEM 17904-66 pushrod, adjusting screw and lock nut assembly. Note: Must re-use or order separately the OEM style adjusting screws (M556-634 / Repl. 18556-57) & locknut kit (513465 / 18570-38) which are not included. Note: See FMC-902-571 for pushrod set complete with adjusting screws and lock nuts.
Fits: > 66-84 Shovelhead with stock hydraulic lifters (NU)
