Manley Spring Cup .635in ID 1.535in OD Valve Spring Locator (For 221420/55/56/57/60/61)

Manley Performance Valve Spring Cups provide a precision-machined, durable foundation for valve springs while protecting the cylinder head from spring wear. Manufactured from premium materials and held to exacting tolerances, they help maintain proper spring alignment for reliable valvetrain performance in both street and racing applications.