Ferrea E11047-1 Titanium Valve Spring Retainer - Single

The Ferrea E11047-1 is a precision-machined titanium valve spring retainer sold as a single unit. Engineered for high-performance and racing engine applications, this retainer is part of Ferrea's trusted valvetrain component lineup, developed through decades of involvement in Formula 1, IndyCar, NASCAR, and professional drag racing programs.

Titanium construction offers a significant weight reduction over steel retainers, reducing valvetrain reciprocating mass to allow higher RPM capability and improved engine response. Ferrea's retainers are CNC machined to close tolerances for precise, repeatable fitment and are designed to work in conjunction with Ferrea valve springs and competition valves.

Key Features:

• Precision CNC-machined titanium construction for reduced reciprocating mass
• Significant weight savings over comparable steel retainers
• Engineered for compatibility with Ferrea valve springs and competition valves
• Designed to withstand extreme spring pressures found in high-performance and race engines
• Sold individually (single retainer) — order quantity as needed per application
• Manufactured by Ferrea, a trusted name in engine valve and valvetrain components for nearly 50 years

Whether building a street performance engine or a dedicated race motor, the Ferrea E11047-1 titanium retainer delivers the precision and reliability demanded by professional engine builders worldwide.