GSC +1mm Intake Valve Set – Nissan TB48DE (Set of 12) – GSC2084-12
The GSC Power Division +1mm Intake Valve Set (PN GSC2084-12) is built for Nissan TB48DE engines demanding increased airflow, heat resistance, and long-term durability. With a larger 39.50mm head diameter and a precision-machined 7mm stem, these valves are optimized for high boost, elevated RPMs, and aggressive cam profiles.
- Stem Diameter: 7mm
- Overall Length: 100.20mm
- Head Diameter: 39.50mm (+1mm oversize)
Developed using advanced 3D simulation and modeling software, GSC’s oversized intake valves feature a high-flow head profile tailored for TB48DE applications. Flow testing confirms superior performance, while reduced face distortion ensures better sealing under extreme heat and pressure—delivering consistent results over the valve’s lifespan.
- Improve intake flow and combustion efficiency
- Reduces valve mass for better RPM response and boost tolerance
- Minimize oil retention and reduce drag for smoother valve movement
- Material: Modified 21-4n stainless steel for intake valves—built for high heat and long-term 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: Fits OEM keepers/locks or GSC upgraded options (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
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