PAC Racing Springs PAC-R455-16 Titanium Valve Spring Retainers for GM LS-Series, 7-Degree, Dual Spring, Set of 16

Upgrade the valvetrain of your GM LS-Series engine with PAC Racing Springs PAC-R455-16 titanium valve spring retainers. Designed for high-performance applications, these retainers feature a 7-degree configuration and stepped outer diameters to support dual valve spring setups. The titanium construction delivers a strong, lightweight solution that helps reduce valvetrain mass while maintaining reliable spring control at elevated engine speeds.
The PAC-R455-16 retainers are engineered for compatibility with GM LS-Series cylinder heads and are supplied as a complete set of 16. Their stepped design accommodates spring arrangements using 0.920-inch and 0.650-inch outside diameters, making them a practical choice for specialized racing, performance street, and competition engine builds. The 7-degree configuration is intended for use with matching valve locks and compatible valvetrain components.
Each retainer is manufactured to PAC Racing Springs standards for consistent fit and dependable performance. Before installation, verify valve stem, lock, spring, and cylinder head compatibility with your specific engine combination. Proper assembly and installed-height checks are essential for achieving the correct spring pressure and ensuring long-term valvetrain reliability. The PAC-R455-16 set includes 16 titanium valve spring retainers for a complete GM LS-Series application.

Features:

• Brand: PAC Racing Springs

• Part Number: PAC-R455-16

• Application: GM LS-Series engines

• Material: Titanium

• Retainer Type: Valve spring retainer

• Configuration: 7-degree

• Spring Compatibility: Dual spring

• Stepped Outside Diameters: 0.920-inch and 0.650-inch

• Quantity: Set of 16