1.400" Od. 1.060" Id. 10 Degree 11/32 Chromoly Steel Valve Spring Retainers 1966-83 trucks and Suburbans

1966-83 trucks and Suburbans

If you are looking for a manifold to use with your 8-71 or 6-71 supercharger

The Speedmaster MidRise Air design features the identical plenum and runner design as the normal MidRise

Speedmaster billet steel flywheels are fully CNC machined from a high tensile aircraft material billet steel

This body has a much larger diameter then your existing throttle body

1.400" Od. 1.060" Id. 10 Degree 11/32 Chromoly Steel Valve Spring Retainers 1966-83 trucks and SuburbansSpeedmaster 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.