The ductile arms were made by Crane, they’re no longer in biz. MoPar Performance sold the Crane rockers.
Currently, Harland Sharp makes Econo and race head rockers for the W2. Then there is Jesel and TD.
All W2 rockers are offset on the intakes.
The race heads have rocker shaft stands that can be moved on the head.
If you go with TD or Jesel, you’ll need to know the valve length before ordering.
