GSC Short Super Alloy Exhaust Valve Set – Nissan VR38DETT STD Size (Set of 12) – GSC2055-12
The GSC Power Division Short Super Alloy Exhaust Valve Set (PN GSC2055-12) is designed for engines operating under extreme boost and elevated exhaust temperatures. Featuring a standard head diameter of 32.15mm, these valves are built to handle up to 2000°F while maintaining consistent sealing and flow. The shortened protrusion by 0.25mm makes them ideal for cylinder heads undergoing a valve job.
- 6mm
- 91.95mm
- 32.15mm
Developed using advanced 3D modeling and flow simulation, GSC’s exhaust valve design minimizes face distortion for better sealing under high heat. The result: improved reliability, smoother airflow, and easier installation when setting valve lash.
- Promote smoother exhaust flow
- Reduces valve weight for improved RPM and boost response
- Minimize oil retention and reduce drag for smoother movement
- Material: Inconel 751 super alloy for high heat tolerance and strength
- Within 5 Rockwell C of the rocker or tappet for extended wear resistance
- Reduces tipping and simplifies valve lash setup
- Balances spring pressure to reduce shim use and maximize spring/retainer performance
- Compatibility: Works with OEM or GSC upgraded keeper/lock (new locks recommended for performance builds)
This version features a shortened valve protrusion for heads receiving a valve job. For direct OEM replacement without machining, use GSC2051-01 or GSC2051-12.
Fitment:
- 2009 - 2024 Nissan GT-R R35 3.8L Twin Turbo V6 DOHC (VR38DETT)
- 2015 - 2024 Nissan GT-R NISMO 3.8L Twin Turbo V6 DOHC (VR38DETT)
- 2017 - 2021 Nissan GT-R Track Edition 3.8L Twin Turbo V6 DOHC (VR38DETT)
- 2009 - 2024 Nissan GT-R Premium 3.8L Twin Turbo V6 DOHC (VR38DETT)
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