Nissan GT-R 3.8 VR38DETT Supertech valve spring kit SPRK-TS1015-GTR

Spring data:
Outer spring outer diameter: 27.50mm
Outer spring inner diameter: 20.00mm
Inner spring outer diameter: 20.00mm
Inner spring inner diameter: 15.20mm
Seat pressure: [email protected] (seat)
Spring coil bind: 20.70mm
Max lift: 14.00mm
Rate: 12.10Lbs/mm

Set includes:
Dual springs: 24 pcs. SPR-TS1015-GTR
Titanium retainers: 12 pcs. RET-TS5.5-T8 (intake) & 12 pcs. RET-TS5.5-T9F (exhaust)
Seats: 12 pcs. SEAT-TS-GTR2 (intake) & 12 pcs. SEAT-TS-GTR (exhaust)