SKU: PACPAC-R522-16
UPC: 193564539250
MPN: PAC-R522-16
The PAC Racing Springs 1.480 TI Valve Spring Retainers with 10-degree geometry represent precision engineering for high-performance engine builds requiring strict valve control across elevated RPM ranges. Manufactured from titanium, these retainers deliver the strength-to-weight advantage essential in competitive racing and high-output engine applications where conventional steel hardware introduces unnecessary mass and reliability compromise.
Each set contains 16 retainers sized for triple-spring configurations with a 1.480-inch outer diameter and stepped bore geometry (1.180 in / 0.865 in / 0.635 in OD steps). The 10-degree valve angle specification matches common modern cylinder head designs and ensures proper spring seating geometry, critical for maintaining consistent preload and preventing spring surge at high valve velocities. Titanium construction reduces reciprocating mass compared to steel alternatives, translating directly to improved engine responsiveness and reduced stress on valve train components during aggressive acceleration and extended high-RPM operation.
These retainers are designed for serious engine builders and racing teams optimizing domestic and import performance engines, particularly where OEM valve springs are being upgraded to heavier-duty specifications or where custom spring rates demand precision retainer geometry. The titanium material resists corrosion and thermal stress in extreme operating conditions, supporting repeatability across multiple dyno sessions and race events. Proper retainer selection ensures valve float prevention and extends overall valve train durability when paired with compatible springs and keepers.
PAC Racing Springs is recognized across the automotive performance industry for manufacturing valve train components to OEM and race-spec tolerances. This product is compatible with applications using 10-degree valve angles and triple-spring assemblies; confirmation of application fit with your specific engine or spring kit is essential before installation.
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