4340 chromoly steel. Screw has oil hole drilled through the center for running a custom ”top-end lubrication through the pushrods” system. 3/8″ ball end and 9/32″-32 threaded. Note: Specialty item. Designed for use with special JIMS tappets for top-end lubrication through the pushrods.
JIMS, 4340 chromoly steel tappet screws. Special
€256.50
36-52 Knuckle; Panhead and all others; including Shovelhead and Evolution with special JIMS tappets