PRW Industries Pro Series Billet Aluminum Roller Rocker Arm - 7/16 in Stud Mount - 1.60 Ratio - Black - Small Block Chevy (Set of 16) DEW32-1139002A use a 3/8" drive wrench

use a 3/8" drive wrench on the top and simply turn in or out to pre-load

Optional chrome mirror

Your choice of headset or helmet kit

you can ditch the grubby-looking towels on the floor or stop leaving boots in the garage to get cold and damp

3 different throttle cable balls

PRW Industries Pro Series Billet Aluminum Roller Rocker Arm - 7/16 in Stud Mount - 1.60 Ratio - Black - Small Block Chevy (Set of 16) DEW32-1139002A use a 3/8" drive wrenchProduct Description: Rocker Arm Pro Series Billet 7 16 in Stud Mount 1. 60 Ratio Full Roller Aluminum Black Anodized Small Block Chevy Set of 16 PRW Industries produces engine components for racing applications such as rocker arms, valve covers and main caps to name a few. These products offer performance gains at a value price. Over a decade ago, PRW Industries, Inc. (PRWI) recognized the need for branded, high performance after market parts that