TSP Gen V LT4 .660 Dual Valve Spring Kit with PAC Springs and Titanium Retainers
Texas Speed & Performance .660-inch dual valve spring kit developed specifically for Gen V LT4 engines. This package combines application-specific PAC dual springs with titanium retainers and integrated seats and seals for compatible LT4 camshaft upgrades.
- Set of 16 LT4-specific PAC dual valve springs
- Titanium retainers
- PRC integrated spring seats and valve seals
- 160 lb closed pressure at 1.810-inch installed height
- 415 lb open pressure at .660-inch lift
- .660-inch recommended maximum lift
- 1.015-inch coil bind height
Fitment note: For compatible Gen V LT4 cylinder heads. Verify cylinder-head and valve-guide configuration before installation. Factory valve locks are reused and are not included.
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