This ARP rocker arm stud kit is specified for Ford 4.6L 4-valve engines and includes broached studs in the listed 1.25 and 1.0 sizes. Supplied as engine hardware, the kit provides correct-fit studs for the rocker arm location on the designated 4.6L heads, intended to replace or upgrade factory fasteners where required during cylinder head or valvetrain service.
ARP Ford 4.6L 4vouter ms 1.25 & 1.0 Broached Stud