481-X Stage IV Rocker Assembly: 1.90 x 1.80 ratio w/ T&D Steel Rockers. Includes Girdles & all Rocker hardware. (assy)

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)