1.400" Od 1.060" Id. 7 Degree 3/8 Chromoly Steel Valve Spring Retainers (Suits Ford FE) so you are good to

so you are good to go

These bolts are forged from aerospace alloy and heat-treated prior to thread rolling and machining

forged from mild steel for ease of welding then fully machined on CNC equipment

wall thickness and are formed from 4130 chromoly steel

Cover your valvetrain with a set of Speedmaster cast aluminum valve covers

1.400" Od 1.060" Id. 7 Degree 3/8 Chromoly Steel Valve Spring Retainers (Suits Ford FE) so you are good toSpeedmaster 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.