Ford SB 289 302 351 Windsor 1.7 Ratio Aluminum Shaft Mount Roller Rocker Arm Set They are manufactured from billet

They are manufactured from billet aluminum and require no drilling or welding for installation

They feature rotating head that easily rotates engines to your desired position by turning a crank handle

durable Speedmaster aluminum crank hub

Speedmaster water pump spacers are fully machined from aluminum to fit your needs in function and style

only draw 4 amps

Ford SB 289 302 351 Windsor 1.7 Ratio Aluminum Shaft Mount Roller Rocker Arm Set They are manufactured from billetSpeedmaster 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.