heavy duty rocker arm - M10/M30 Performance/Race We designed these rocker arms to be extra thick on the adjuster side to eliminate the fatigue failures which are common with weak OEM and Febi factory rockers. They are polished and shot peened with no casting marks, and use standard BMW adjuster hardware. These fit both M10 and M30 engines. M10 engine: order 8 rockers M30 engine: order 12 rockers Price: $26.19   Quantity to Add:   CONTACT US AT BMWSALES@2002AD.COM 1-800-4-2002AD 909-629-1955 outside of the USA COPYRIGHT © 2002 AD, ALL RIGHTS RESERVED.