Ford SB 289 302 351 Windsor 1.7 Ratio Aluminum Shaft Mount Roller Rocker Arm Set permanent-magnet 12 V electric motor

permanent-magnet 12 V electric motor and feature factory-set base pressure

They're also much more durable

draw only 2 amps

One very small

Speedmaster rock-solid race shifting Billet Street automatic shifters can give your street ride the feel of having a full-on race stick in your hand

Ford SB 289 302 351 Windsor 1.7 Ratio Aluminum Shaft Mount Roller Rocker Arm Set permanent-magnet 12 V electric motorSpeedmaster 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.