Mopar Chrysler 5.7L 6.1L 6.4L Hemi Stainless Steel Roller Rocker Arms & Shafts improved throttle response and better

improved throttle response and better fuel economy

look no further than Speedmaster

Flat surfaces are finished with CNC machine center for accuracy and smoothness

They start to make awesome power around 3

Mopar Chrysler 5.7L 6.1L 6.4L Hemi Stainless Steel Roller Rocker Arms & Shafts improved throttle response and betterSpeedmaster extruded aluminum and stainless steel shaft mount rocker system includes steel shafts with pedestals. All rockers feature large needle bearings or bushes and roller tips. For extreme high performance applications. They not only unleash horsepower, but they also lengthen valvetrain component life and reduce wear and tear on valve stem tips. These rockers are precision machined to ensure consistency and ratio accuracy and have a great