475274 — Performance Engine Valve Spring Retainer

• Lightweight high strength materials. Manufactured from stainless steel, chromoly steel or aerospace titanium (application dependent) for outstanding fatigue resistance and long service life
• Precision CNC Machining. CNC machined to tight tolerances to ensure consistent spring location, accurate valve locking, and exact fitment.
• Improved valve control. Strong and precise retention of the valve spring and locks reduces valve float and enhances high-speed valve stability.
• Reduced mass equals higher RPM capability. Lightweight designs reduce valvetrain inertia for quicker valve response and improved stability at elevated engine speeds.
• Hardened lock grooves. Precision cut and heat-treated lock interfaces ensure secure engagement with valve locks and prevent wear or pull-through at high RPM.
• High RPM rated design. Engineered to withstand extreme spring pressures and continuous high-speed operation without deformation or fatigue.
• Ideal for high stress applications. Perfect for circle track racing, street and strip, nitrous, and high-lift camshaft setups where valvetrain demands are extreme.

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