GSC Power-Division High Boost CONICAL Valve Spring kit for TB48
GSC Power-Division Hight Pressure CONICAL Valve Spring kit with Ti Retainers and spring seats for Boosted Nissan TB48.
- 132lbs @ 1.330" install height
- 288lbs @ .858" (12.0mm lift)
Check your valve spring install heights here

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GSC5087 High Pressure CONICAL Valve Spring with Ti Retainer for Boosted TB48 (W/SEATS) | |||||
Setup | Coil Bind (in) | Install Height (in) | Seat Pressure (lbs) | Open Pressure, 12.0mm lift | Maximum Valve Lift (in) |
Conical | 0.793" | 1.330 | 132 | 288lbs @ 0.858" | 0.473" |
- Max RPM: 10,000 RPM
- Max boost: 60 psi
Kit includes 24 Ti retainers, 24 conical valve springs, and 24 chromoly spring seats.