1.500" Od. 1.150" Id. 10 Degree 11/32 Chromoly Steel Valve Spring Retainers Speedmaster rocker arm adjusting nuts

Speedmaster rocker arm adjusting nuts are high-quality polylocks designed for full roller rocker arms

They also offer the potential for improved fuel economy by making the engine more efficient

Windsor and Big Block versions are built from sturdy cast aluminum

Just bolt the pre-assembled unit to the back of the shifter and you are ready to go

With an adjustable vintage plastic snapback closure

1.500" Od. 1.150" Id. 10 Degree 11/32 Chromoly Steel Valve Spring Retainers Speedmaster rocker arm adjusting nutsSpeedmaster chromoly steel retainers are made from 4140 chromoly and then heat treated for long life. These retainers are available in a variety of lock angles and sizes to suit your needs, from performance street to competition use.