group 0 rocker arm shafts 1963-1966 401 and 425 engines either side rs-536 54. ... 6.50 ea 1964-1967 solid rocker cover plug cp-647 9.50 ea 1967-1974 intake ... manifold vent grommet vg-634 6.50 ea 1970-1974 ... and sets 1968-1969 350,400,430 engines intake #1,4,5,8 exhaust #2,3,6,7 ra-689a 16. ... 50 ea 1968-1969 350,400,430 engines intake #2,3,6,7 exhaust #1,4,5,8 ra-689b 16. ... ra-689s 259.50 set 1970-1975 455 engine intake #1,4,5,8 exhaust #2,3,6,7 ra-705a 8.25 ... ea 1970-1975 455 engine intake #2,3,6,7 exhaust #1,4,5,8 ra-705b 7.50 ... cover nut with 1 shaft to hold spark plug wire retainers can be chromed for stage ...