GSC Super Alloy Exhaust Valve Set – +1mm Oversize – Nissan RB26DETT (Set of 12) – GSC2145-12
The GSC Power Division +1mm Super Alloy Exhaust Valve Set (PN GSC2145-12) is engineered for Nissan RB26DETT engines operating under intense thermal and performance conditions. Designed to endure exhaust gas temperatures up to 2000°F, these valves are ideal for high-horsepower turbocharged setups demanding durability and consistent flow.
- Head Diameter: 31.15mm / 1.226in
- Total Length: 101.74mm / 4.006in
- Stem Diameter: 6.905mm / 0.272in
Using advanced 3D simulation and design software, GSC developed a high-flow valve head profile tailored for RB26DETT platforms. Each prototype is flow-tested in application-specific conditions to ensure maximum performance. The result: reduced face distortion, improved sealing under heat and pressure, and consistent reliability over time.
- Enhances engine breathing for better power and efficiency
- Reduces valve weight and supports higher RPM capability
- Minimize oil retention and reduce friction for smoother valve movement
- Built to endure extreme exhaust temperatures without compromising strength
- Hardened or fused with stelite wafer for extended wear resistance
- Compatibility: Works with OEM keeper/lock systems; new locks recommended for performance builds due to potential grooving
Backed by GSC Power Division’s reputation for precision, durability, and high-performance engineering.
Fitment:
- 1989 Nissan Skyline GT-R RB26DETT
- 1990 Nissan Skyline GT-R RB26DETT
- 1991 Nissan Skyline GT-R RB26DETT
- 1992 Nissan Skyline GT-R RB26DETT
- 1993 Nissan Skyline GT-R RB26DETT
- 1994 Nissan Skyline GT-R RB26DETT
- 1995 Nissan Skyline GT-R RB26DETT
- 1996 Nissan Skyline GT-R RB26DETT
- 1997 Nissan Skyline GT-R RB26DETT
- 1998 Nissan Skyline GT-R RB26DETT
- 1999 Nissan Skyline GT-R RB26DETT
- 2000 Nissan Skyline GT-R RB26DETT
- 2001 Nissan Skyline GT-R RB26DETT
- 2002 Nissan Skyline GT-R RB26DETT
CA Residents: WARNING: Cancer and Reproductive Harm www.P65Warnings.ca.gov
