Chevy SBC 350 1.6 Ratio Aluminum Shaft Mount Roller Rocker Arm .100 Int Offset The purpose of the servo

The purpose of the servo piston is to apply force to the rear band

it's important to have the right parts for the job

Extend the life of your C4 output shaft by reducing shaft whip with 6910CM bearing

and are precision coated with red anondizing with the impeccable finish you've come to expect from all Speedmaster components

They accept all OEM and aftermarket coils and install easily with the included stainless steel button head fasteners

Chevy SBC 350 1.6 Ratio Aluminum Shaft Mount Roller Rocker Arm .100 Int Offset The purpose of the servoSpeedmaster extruded aluminum and stainless steel shaft mount rocker system includes steel shafts with pedestals. All rockers feature large needle bearings 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 looking finish.