9/16″ Special O/S Head Bolt Washer Insert: 1.185″ flange OD x .815″ press dia. x .530″ ID (each)

Muscle Head Hemi Intake Rocker Shaft, with 5/16″ bolt holes. Reid .XXX” thick wall 4130 Steel, incl oil plugs. XX-X/X” oal. For MH Stg IV with individual rocker stands. Not for MH Stg IV with rocker girdles. (each)