FYI: Crane outsources the work to another company (the name escapes me at the moment) that specializes in this particular super finishing process (alot like shot peening on a very small level). The company will be at Westec when it comes back to LA. I used them, Carillo used them, Edelbrock, HPD, etc. Many of the NASACAR dingle berries started using it as a surface finish spec.
IMO it's one of those things that you shouldn't have to do if you had a decent machined finish to start with. :geek: