ARP 1007101 Rocker Arm Stud 16Pk, Black

Chevy SB With roller rockers and girdles and Typical Ford small block 7/16 in the head and rocker. ARP 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 arm 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. Available in both High Performance and Pro Series models. NOTE: Not to be used with OEM-style, self-locking nuts. To be used with ARPs patented Perma-Loc orShur-loc rocker arm nutsB 1.900, C.750, D 1.000,E7/16-20, F7/16-14