GSC Exhaust Valve +1mm – Nissan TB48DE Single (GSC2083-01)
The GSC Power Division +1mm Oversize Exhaust Valve (PN GSC2083-01) is precision-engineered for Nissan TB48DE engines requiring enhanced flow, heat resistance, and long-term durability. With a 34.50mm head diameter and a rugged 7mm stem, this valve is built to handle high boost, elevated RPMs, and aggressive cam profiles.
- Stem Diameter: 7mm
- Overall Length: 98.30mm
- Head Diameter: 34.50mm (+1mm oversize)
Designed using advanced 3D simulation and modeling software, GSC’s exhaust valve features a high-flow head profile tested specifically in TB48DE applications. The result: reduced face distortion, improved sealing under extreme heat, and consistent performance throughout the valve’s lifespan.
- Improve exhaust flow and combustion efficiency
- Reduces valve mass for better RPM response and boost tolerance
- Minimize oil retention and reduce drag for smoother movement
- Material: Modified 23-8n stainless steel for exhaust valves—built for high heat and durability
- Hardened or fused with stelite wafer for extended wear resistance
- Reduces tipping and simplifies valve lash setup
- Balances spring pressure to reduce shim use and enhance spring/retainer performance
- Compatibility: Works with OEM or GSC upgraded keeper/lock (new locks recommended for performance builds)
Fitment:
- 2002 Nissan Patrol GR TB48DE
- 2003 Nissan Patrol GR TB48DE
- 2004 Nissan Patrol GR TB48DE
- 2005 Nissan Patrol GR TB48DE
- 2006 Nissan Patrol GR TB48DE
- 2007 Nissan Patrol GR TB48DE
- 2008 Nissan Patrol GR TB48DE
- 2009 Nissan Patrol GR TB48DE
- 2010 Nissan Patrol GR TB48DE
- 2011 Nissan Patrol GR TB48DE
- 2012 Nissan Patrol GR TB48DE
- 2013 Nissan Patrol GR TB48DE
- 2014 Nissan Patrol GR TB48DE
- 2015 Nissan Patrol GR TB48DE
- 2016 Nissan Patrol GR TB48DE
- 2017 Nissan Patrol GR TB48DE
- 2018 Nissan Patrol GR TB48DE
- 2019 Nissan Patrol GR TB48DE
- 2020 Nissan Patrol GR TB48DE
CA Residents: WARNING: Cancer and Reproductive Harm www.P65Warnings.ca.gov
