1.400" Od. 1.060" Id.(+.050) 10 Deg 11/32 Chromoly Steel Valve Spring Retainers these cams provide better throttle

these cams provide better throttle response and more top-end horsepower than equivalent cams from other manufacturers

Speedmaster pushrods are available in both 5/16 in

For extreme high performance applications

where dynamic flow and rock-steady pressure control are desired

Replacement Spring Isolator for PC12004 A-Arms

1.400" Od. 1.060" Id.(+.050) 10 Deg 11/32 Chromoly Steel Valve Spring Retainers these cams provide better throttleSpeedmaster 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.