roller rocker arms
About five years ago a manufacturer from China sent me samples of sbc, bbc, and sbf roller rocker arms that looked similiar to Crane golds. He also sent a set of 1.7 bbc arms for me to "evaluate". The price was $68 per set if I purchased 50 sets. They sat on a shelf for about a year, before I gave them to another engine builder, who installed them in a mild marine engine. They lasted less than two hours.