GSC Exhaust Valve 35mm Standard Set (Honda K-Series DOHC VTEC) GSC2042-8

GSC Intake Valve Set – Honda K-Series VTEC – 35mm STD – Set of 8 – GSC2042-8

Precision-crafted for high-RPM Honda builds with lasting performance

This set of eight standard-size 35mm intake valves from GSC Power Division is designed for Honda K-Series DOHC VTEC engines. Each valve features a 5.5mm stem and measures 108.80mm in overall length, engineered to deliver maximum airflow, heat resistance, and durability in high-performance applications.

Developed using advanced 3D modeling and simulation software, GSC’s valve heads are optimized for strength and flow. Each prototype is tested in its intended engine platform to ensure peak performance. The result is a high-flow valve with minimal face distortion—providing better sealing under extreme conditions and consistent operation throughout its lifespan.

Key Features:

• Swirl-polished heads improve airflow across the valve surface
• Backcut design reduces weight for higher RPM and aggressive cam compatibility
• Micro-polished stems reduce oil retention and drag for smoother movement
• Intake valves made from modified 21-4n stainless for high heat tolerance and long-term reliability
• Valve tips are hardened or fused with stelite wafers for extended wear resistance
• Tip heights are optimized to reduce setup time and maintain proper valvetrain geometry
• Keeper grooves are refined to balance spring pressures and minimize the need for shims
• Compatible with OEM or upgraded keepers/locks (reuse of old locks not recommended for performance builds)

Fitment:

- 2002-2006 Acura RSX Type-S (K20A2, K20Z1)
- 2002-2005 Honda Civic Si (K20A3)
- 2006-2011 Honda Civic Si (K20Z3)
- 2004-2008 Acura TSX (K24A2)
- 2003-2007 Honda Accord (K24A4, K24A8)
- 2003-2006 Honda Element (K24A4)
- 2003-2006 Honda CR-V (K24A1)

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