Manley 26150K Pro Series Valve Spring Titanium Retainer Kit Sport Compact

The Manley 26150K Pro Series Spring and Retainer Kit is a precision-matched set engineered for high-revving Sport Compact engine applications. This kit pairs Manley's high-performance valve springs with lightweight aerospace-grade titanium retainers to deliver superior valvetrain control and reliability under extreme operating conditions.

Key Features:

• Chrome Silicon Valve Springs: Manufactured from super-clean, high-tensile-strength chrome silicon steel alloy, specifically designed to handle the demands of today's aftermarket Sport Compact camshafts
• Advanced Heat Treatment: Springs undergo classified heat treatment and shot peen processing to maximize fatigue life and minimize load loss over time
• Aerospace-Grade Titanium Retainers: Machined from certified, heat-treated aerospace-grade titanium bar stock for uncompromising strength and reduced weight
• Dual Spindle CNC Machining: Retainers are produced on dual-spindle CNC equipment to exacting tolerances, resulting in a superior jewel-like finish
• Precision Geometry: Retainer angles held to within 6 minutes (one-tenth of a degree); installed heights controlled to within ±0.005"
• Reduced Valvetrain Mass: Titanium retainers significantly reduce reciprocating mass, enabling higher engine speeds while preventing dangerous valve float
• Matched Set: Springs and retainers are sold as a matched kit for optimal compatibility and performance

Manley's Pro Series Spring and Retainer Kits are the ideal upgrade for Sport Compact builds pushing high RPM limits. The combination of premium chrome silicon springs and lightweight titanium retainers ensures consistent valvetrain performance without sacrificing long-term durability or reliability.