ARP Fasteners Rocker Arm Studs

If you have ever installed a rocker stud into a cylinder head and watched it wobble as it screwed in, you knew from the beginning that the rocker geometry was going to be inconsistent all over the place. ARP® rocker studs are concentric within .005 T.I.R. thread pitch to thread pitch. They run in straight and true. Lengths are exact—designed to provide positive seating every time. An extra-large radius base offers greater resistance to flex.