Manley 26175 Pro Series Valve Spring and Titanium Retainer Kit

The Manley Pro Series Spring and Retainer Kit is a precision-matched valve train upgrade designed for high-revving sport compact engines. This complete kit combines Manley's performance valve springs with lightweight titanium retainers to provide superior valve control at elevated RPM levels.

Performance Valve Springs:

• Manufactured from premium chrome silicon high-tensile strength steel alloy for maximum durability
• Engineered to withstand the demands of aggressive aftermarket camshafts
• Heat-treated and shot-peened for optimal fatigue life and minimal load loss
• Maintains precise valve control throughout the RPM range

Aerospace-Grade Titanium Retainers:

• Machined from certified, heat-treated aerospace titanium bar stock on dual-spindle CNC equipment
• Retainer angles held to within 6 arcminutes (0.1 degree) tolerance
• Installed heights maintained to within 0.005 inch tolerance
• Significantly reduced mass compared to steel retainers enables higher safe engine speeds
• Premium jewel-like finish quality

This matched spring and retainer combination allows tuners to safely achieve higher engine speeds while preventing valve float and maintaining long-term reliability in demanding sport compact applications.