TSP .660 Polished Dual Valve Spring Kit with PAC Springs, Titanium Retainers and Two-Piece Seats and Seals
Texas Speed & Performance .660-inch polished dual valve spring kit for GM LS cylinder heads that require separate spring seats and valve seals. This version is the correct choice for many aftermarket cylinder heads using bronze valve guides.
- Set of 16 polished PAC dual valve springs
- Titanium retainers
- Separate 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: Verify valve-guide diameter and installed height before ordering. Factory valve locks are reused and are not included.
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