Manley 26130K Pro Series Valve Spring and Titanium Retainer Kit

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

Chrome Silicon Valve Springs:

• Engineered to withstand the demands of aggressive aftermarket camshafts
• Manufactured from super-clean chrome silicon high tensile strength steel alloy
• Classified heat treatment and shot peen processing for maximum fatigue life and minimal load loss
• Designed to maintain proper valve train control at high engine speeds

Aerospace-Grade Titanium Retainers:

• CNC-machined from heat-treated aerospace-grade titanium bar stock on dual-spindle machines
• Retainer angles held to within 6 minutes (one-tenth of a degree) for exceptional precision
• Installed heights maintained within .005 inch tolerance
• Superior jewel-like finish from precision manufacturing process
• Reduced reciprocating mass allows higher RPM operation while preventing valve float

This matched spring and retainer kit provides the reliability and performance characteristics needed for serious sport compact engine builds, allowing tuners to safely achieve higher engine speeds without compromising durability.