1.475 TI Valve Spring Retainer - 10 Degree

The PAC RACING SPRINGS 1.475 TI Valve Spring Retainer with 10-degree geometry is a precision-engineered component designed for high-performance engine builds requiring titanium construction and exacting dimensional tolerances. Manufactured by PAC Racing Springs—an industry leader in valve train components—this retainer supports the 500 Series spring lineup and delivers the lightweight strength demanded by serious engine builders and racing applications where every fraction of an ounce and every degree of geometry contributes to overall performance.

This valve spring retainer features a triple-spring design with a 1.475-inch diameter and multi-step OD geometry (1.185 in / 0.865 in / 0.635 in steps) that ensures precise seating and alignment with 500 Series spring assemblies. The 10-degree angle is critical for matching stock or modified cam geometries, reducing valve stress and ensuring proper spring seating pressure. Titanium construction provides a significant weight reduction compared to steel alternatives while maintaining the structural integrity required for high-RPM applications. The compact profile (2.15 x 0.55 x 2.9 inches) and minimal weight (0.03 lbs) make it suitable for engine builds where rotating mass reduction directly improves acceleration and responsiveness.

Engine builders, race shops, and performance enthusiasts working with PAC Racing Springs valve train kits will find this retainer essential for completing 500 Series assemblies. It's specified for engines targeting increased RPM limits, modified valve events, or aggressive cammed applications where OEM retainers are insufficient. Each retainer is sold individually, allowing builders to source exactly the quantity needed for their project. Verify compatibility with your specific spring assembly and engine configuration before installation to ensure proper geometry and seating.