A-motor aluminum rocker arms

I was at the local speed shop looking for a set of aluminum adjustable rocker arms for a 318. The guy showed me a set with roller tips and adjusters, but no bearings. They were red anodized and the bearing hole showed signs of being honed like in a brake cylinder. It had no needle bearings and no bronze bushings. Acoording to him, they just run aluminum on steel shafts. Has anyone on this site run these? Were they successful?