GSC Exhaust Valve 28mm Standard - Set of 8 (Honda B-Series DOHC VTEC) GSC2039-8

GSC Exhaust Valve Set – Honda B-Series VTEC – 28mm STD – 6mm Stem – Set of 8 – GSC2039-8

Built for high-horsepower, high-EGT Honda valvetrain setups

This set of eight standard-size 28mm exhaust valves from GSC Power Division is engineered for Honda B-Series DOHC VTEC engines operating under extreme heat and boost. Each valve features a 6.0mm stem and measures 102.60mm in overall length, crafted from Super Alloy to withstand temperatures up to 2000°F.

The chrome-polished stems offer a slick, durable surface that improves lubricity and longevity—especially when paired with GSC’s manganese bronze valve guides. The under-head dish is optimized for weight reduction, while swirl-polished and backcut heads enhance airflow without compromising strength.

Specs & Features:

• Head Diameter: 28.00mm
• Stem Diameter: 6.0mm
• Overall Length: 102.60mm
• Material: Super Alloy with chrome-polished stem
• Designed for high-heat, high-boost performance builds
• Lightweight under-head dish for RPM response
• Swirl-polished and backcut heads for improved flow
• Recommended with GSC3049-8 valve guides

Fitment:

- Honda Civic SiR (EG6, EG9) – 1992–1995 – B16A Gen 2
- Honda Civic Si (EM1) – 1999–2000 – B16A2
- Honda Civic Type R (EK9) – 1997–2000 – B16B
- Honda CR-X SiR (EF8) – 1989–1991 – B16A Gen 1
- Honda Integra GS-R (DC2) – 1994–2001 – B18C1
- Honda Integra Type R (DC2) – 1997–2001 – B18C5
- Honda Del Sol VTEC – 1994–1997 – B16A3
- Honda Civic SiRII (EK4) – 1996–2000 – B16A4 

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