1.500" Od. 1.150" Id. 10 Degree 11/32 Chromoly Steel Valve Spring Retainers They are manufactured from cast

They are manufactured from cast aluminum and have a powedercoated black/ polished finish

The GM LS1 Modular Ram Air Intake Manifold was designed for high-performance applications where induction system height is not limited

These Speedmaster valve covers are an affordable and easy way to brighten up your engine

Speedmaster high quality aluminum replacement air horn kit to suit downdraft manifolds

1.500" Od. 1.150" Id. 10 Degree 11/32 Chromoly Steel Valve Spring Retainers They are manufactured from castSpeedmaster 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.