1.500" Od. 1.120" Id. 10 Degree 11/32 Chromoly Steel Valve Spring Retainers So can features such as

So can features such as full ball-bearing construction

8" diameter ring gear and removable pinion support

By using an aggressive lobe profile

full nylon braid

The Speedmaster Serpentine Pulley Kit is engineered to offer a balance of performance and value for high-performance street cars and race car applications

1.500" Od. 1.120" Id. 10 Degree 11/32 Chromoly Steel Valve Spring Retainers So can features such asSpeedmaster 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.