These fit the small block Mopar engines series A and LA, this includes the 273, 318, 340, 360, 408 Crane shaft-mounted aluminum rocker arms feature the same rugged extruded billet construction as fulcrum style rocker arms. Pushrod with "cup" end to match the adjusting screw must be used. 16 roller-tip aluminum rocker arms 1 pair of rocker arm shafts 1 container of assembly lube Will not fit Trans Am or W2 heads