VR38DETT Single Conical Valve Spring and Titanium Retainer Kit - Race Only

• 2009–2021 Nissan | GT-R

The GSC Power-Division extreme pressure conical valve spring kit with titanium retainers for the Nissan VR38DETT is a race-only valvetrain solution built for 2000+ HP applications. The kit includes 24 titanium retainers, 24 conical valve springs, and 24 valve spring shims. True conical valve springs provide superior damping and removal of valvetrain harmonics compared to traditional cylindrical or beehive designs — the varying coil diameter and coil spacing act as a natural harmonic damper, reducing stress, wear, and component fatigue. Every GSC conical spring offers a super-finished surface treatment plus a patented multi-step heat treatment process. RACE ONLY: replace valve springs after 250 hours of run time.

• Single conical valve spring and titanium retainer kit — race only
• Includes 24 titanium retainers, 24 conical springs, 24 spring shims
• IN: 134 lbs @ 1.324 in / EX: 140 lbs @ 1.306 in install height
• IN: 283 lbs @ 0.875 in / EX: 289 lbs @ 0.857 in open
• Max RPM: 11,000; max boost: 70+ psi; rated 2000+ HP
• Super-finished surface treatment; patented multi-step heat treatment
• RACE ONLY — replace valve springs after 250 hours of run time
• GSC Power-Division part: GSC5089
• Fits 2009-2021 Nissan GT-R R35 (VR38DETT)

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