Xceldyne Technologies High-Quality Spring Retainers - Durable Metal Clips for Automotive, Industrial & Machinery Applications | Perfect for Engine Components, Valve Assemblies & Mechanical Fastening Systems

Lightweight CNC-machined titanium retainers greatly reduce valvetrain mass and increase engine RPM

Increases replacement valve spring life over heavier, stock steel retainers

Use in conjunction with most stock springs and all of CV4s racing replacement valve springs

When used with Xceldyne machined replacement valve locks, you have a perfect retainer/lock/stem fit for unprecedented high-rpm valvetrain control

Set of 4