Manley Performance Valve spring and Retainer Kits take the guess work out of making your valvetrain race-ready. Engineered for maximum durability, stability, and precision in high-performance and racing applications, these chrome-silicon alloy springs provide exceptional fatigue resistance and high-tensile strength, ensuring consistent valve control at extreme RPMs. Save time and money with these kits, featuring premium springs, retainers, designed to handle aggressive aftermarket camshafts.
Features
- Includes matched Valve Springs, Retainers, and Locks (if part number ends in "K"). Spring Locators included in some applications.
- Designed to handle aftermarket camshafts and up to 10,000 RPM
- Heat treated aerospace grade titanium retainers CNC machined to exacting tolerances
- Includes 7 Machined Valve Locks manufactured from the premium quality heat treated steel
Specs
- Max Lift: 0.500"
- Spring: 22200-16
- Titanium Retainer: 23200-16
- Manley Sport Compatct Valve Spring and Retainer Kit
- Stem Diameter: 5.45 / 5.48
- Valve Stem Diameter: 5.45 / 5.48
- Product Type: Valve Spring Kit
- Valve Spring Outer Diameter - Top: 0.855
- Valve Spring Inner Diameter - Top: 0.572
- Valve Spring Outer Diameter - Bottom: 0.995
- Valve Spring Inner Diameter - Bottom: 0.712
- Valve Spring Quantity: 16
- Valve Spring Coil Bind Height: 0.935
- Valve Spring Rate: 230
- Valve Lift - Stock: 0.325
- Valve Lift - Maximum: 0.500
- Installed Pressure and Height: 85 @ 1.480
- Open Pressure and Height: 200 @ 0.980
- Valve Spring Retainer Step Height: 0.120
- Valve Lock Angle: 7
- Industry: Automotive
- Out of Stock Message: Call for Availability
- Title: Manley Valve Spring & Retainer Kit - Ford Duratec 2.0, 2.3L, Ford EcoBoost 2.0L, Mazda MZR 2.0, 2.3, 2.5L, Mazda DISI MZR 2.3L - Valve Locks NOT Included
- Prop 65 Yes/No: Yes
- Prop 65 (C, R or CR): CR
