1.160" Od. 7 Degree 8mm Chromoly Steel Valve Spring Retainers [LS Dual] If you are looking for

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

They are manufactured from machined steel and offer excellent valve spring location

These Speedmaster TDS rear housing ends will get the job done

Kit includes adapter plate to permit use of certain square bore style carburetors

The tank comes with a removable cap so you can easily check the coolant level

1.160" Od. 7 Degree 8mm Chromoly Steel Valve Spring Retainers [LS Dual] If you are looking forSpeedmaster 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.