1.400" Od. 1.060" Id.(+.050) 10 Deg 11/32 Chromoly Steel Valve Spring Retainers Speedmaster manufactures these master cylinders

Speedmaster manufactures these master cylinders from quality materials to ensure proper fitment

durable upgrade for the front of your engine

Speedmaster belt drives represent the ultimate in cam timing systems

Four corner water ports

The Speedmaster throttle body begins as a billet of 6061- T6 aluminum for superior quality and is introduced to a state-of-the-art CNC machine

1.400" Od. 1.060" Id.(+.050) 10 Deg 11/32 Chromoly Steel Valve Spring Retainers Speedmaster manufactures these master cylindersSpeedmaster 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. This specific retainer is designed to add to the installed height by . 050 effectively decreasing spring pressure.