GSC Exhaust Valve 30mm Standard (Honda K-Series DOHC VTEC) GSC2041-01

GSC Exhaust Valve – Honda K-Series VTEC – 30mm STD – Single – GSC2041-01

Precision-built for high-performance Honda valvetrain setups

This standard-size 30mm exhaust valve from GSC Power Division is designed for Honda K-Series DOHC VTEC engines. With a 5.5mm stem and an overall length of 108.80mm, it’s engineered to deliver maximum flow, durability, and heat resistance in demanding performance builds.

GSC developed this valve line using advanced 3D modeling and simulation software to create a stronger, more efficient valve head. Each prototype is flow-tested in its intended application to ensure top-tier performance. The result is a high-flow valve with reduced face distortion—leading to better sealing under extreme conditions and consistent operation over time.

Key Features:

• Swirl-polished head improves airflow across the valve surface
• Backcut design reduces weight for higher RPM and aggressive cam compatibility
• Micro-polished stem minimizes oil retention and drag for smoother movement
• Crafted from modified 23-8n stainless for superior heat tolerance and longevity
• 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 reduce 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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