Manley 23652TS-16 Tool Steel Valve Spring Retainers 1.250" +.050

The Manley 23652TS-16 are high-strength tool steel valve spring retainers designed for demanding performance and racing engine applications. Machined to a 1.250-inch outside diameter with a +.050-inch raised height offset, these retainers allow builders to fine-tune installed valve spring height for precise load and rate adjustments without changing other components.

Key Features:

• Material: Premium tool steel construction for exceptional strength and wear resistance
• Outside Diameter: 1.250 inches
• Height Offset: +.050 inch — raises installed spring height to reduce installed load or adjust spring dynamics
• Precision CNC machined for consistent dimensions and reliable keeper groove fitment
• Compatible with standard 10-degree or 7-degree valve stem keeper systems (verify application)
• Suitable for street performance, road racing, drag racing, and high-RPM engine builds

Manley Performance is a trusted manufacturer of professional-grade valvetrain components. These tool steel retainers are an ideal upgrade over stock stamped-steel or aluminum retainers where elevated spring pressures, high RPM, or extended durability are required.