Does anyone have a pic of the six pack rocker arms vs the non-six pack rockers? Is there a part number stamped in them for identification purposes?
think the "6pak rocker" was standard on 4bbl engines. my '69 r/t (4bbl) has the original rockers on it and they are the improved version vs the '68 and earlier. i don't have any original '68's but do have mopars re-pops and there is a noticeable difference. i'll try get some pics of the two later. the later rocker was used on '70's smog engines too so you're not boxed in by "6pak specific".
