MANLEY 26180 Valve Spring and Retainer Kit (Valve Locks Not Included) for SUBARU WRX/STI

Description MANLEY 26180 Valve Spring and Retainer Kit (Valve Locks Not Included) for SUBARU WRX/STI

Manley Performance valve springs are engineered for maximum durability, stability, and precision in high-performance and racing applications.

Crafted from premium chrome-silicon alloys, these springs provide exceptional fatigue resistance and high-tensile strength, ensuring consistent valve control at extreme RPMs.

• Dual and triple valve spring designs
• Designed to handle aggressive cam profiles
• Helps prevent valve float
• Suitable for naturally aspirated and forced induction applications

Specifications:

• Product Market: Sport Compact
• Stem Diameter: 6.00 MM
• Valve Stem Diameter: 6.00 MM
• Emissions Code: 3
• Product Type: Valve Spring Kit
• Valve Spring Outer Diameter: 1.050 IN
• Valve Spring Inner Diameter: 0.755 IN
• Valve Spring Quantity: 16
• Valve Spring Coil Bind Height: 0.845 IN
• Valve Spring Rate: 245 PPI
• Valve Lift – Stock: 0.370 IN
• Installed Pressure and Height: 60 @ 1.420 PPI
• Open Pressure and Height: 187 @ 0.985 PPI
• Valve Lock Angle: 6 DEG