I use to run the race W2 heads 20+ years ago an I ran the bushed Mopar Performance rockers and they looked like the ones that 70aarcude is showing with the cast in numbers. At the time a friend gave me a one head set of the MP rockers( 4 intake,4 exhaust) for the econo W2 he had laying around, these were the unbushed rockers and they have the z cast in them. Hope this helps in your search.
