Posted By: GTX MATT
Erson Ductile Iron Rockers B/RB Rocker Shafts - 04/10/11 05:01 AM
I bought a set of big block Erson ductile iron rockers from a Moparts member, but I can't find them anywhere online. I assume they've been discontinued. Does anyone know what size rocker shafts I'm supposed to use with these? Will the standard crane shafts for their ductile iron rockers work?
Posted By: Von
Re: Erson Ductile Iron Rockers B/RB Rocker Shafts - 04/10/11 05:28 AM
Yes, they are disco'ed....
What is the ID of the rockers you have?
If they take something other than a standard OD shaft, give RAS a call. They can probably get you taken care of.
Posted By: therocks
Re: Erson Ductile Iron Rockers B/RB Rocker Shafts - 04/10/11 12:50 PM
My Sig Ersons I bought in 71 fit the stock shafts.Ive run them for 40 years and only had to replace the adjusters.I used MP adjusters and locks.Rocky
Posted By: jbc426
Re: Erson Ductile Iron Rockers B/RB Rocker Shafts - 04/10/11 06:15 PM
I think they require a hard chrome shaft to reduce gualing. If it were me, I would send them to RAS and have them gone over and matched to a fresh set of shafts.