Supertech Exhaust Valve 32mm - Sodium Filled Inconel - Set of 8

$485.58
SKU
sptSEVI-1010-HS-8

High-Performance Sodium Filled Inconel Exhaust Valves Valves for Subaru EJ20/EJ25 Turbo DOHC

Supertech Engine Valves are engineered for high-performance street and racing applications, delivering exceptional strength, heat resistance, and precise fit. Production begins with a one-piece forging, where the head is formed under a slow two-step process to maintain optimal material grain flow. Each valve undergoes multiple CNC machining steps, stress-relieving heat treatments, and either nitride hardening or application-specific coatings. Final grinding and our patented Superfinishing process ...

With over 30 years of racing valve development, Supertech combines this deep experience with state-of-the-art manufacturing and testing technology including ultrasonic inspection, x-rays, laser measurement, and Finite Element Analysis (FEA). In collaboration with top engine builders, we conduct continuous testing to refine every valve for high flow, extreme durability, and world-class performance.

This valve features a Single Groove lock groove, a Dished face profile, and measures Standard in diameter, with an overall length of 104.70mm (STD). Built to precise standards, it ensures optimized airflow and long-term reliability.

Features

  • Single Groove lock groove design for secure valve retention

  • Standard valve diameter for optimal flow characteristics

  • Dished face style improves combustion efficiency

  • 104.70mm (STD) total valve length ensures proper fit and seating

  • High-performance materials for strength, fatigue resistance, and thermal stability

Benefits

  • Improved airflow and volumetric efficiency

  • Consistent performance under high boost and RPM

  • Reduced wear and extended valve train life

  • Ideal for naturally aspirated, turbocharged, or nitrous applications

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WARNING: Operating, servicing and maintaining a passenger vehicle or off-road vehicle can expose you to chemicals including engine exhaust, carbon monoxide, phthalates, and lead, which are known to the State of California to cause cancer and birth defects or other reproductive harm. To minimize exposure, avoid breathing exhaust, do not idle the engine except as necessary, service your vehicle in a well-ventilated area and wear gloves or wash your hands frequently when servicing your vehicle. For more information go to P65Warnings

More Information
SKU sptSEVI-1010-HS-8
Manufacturer's Part Number SEVI-1010-HS-8
Brand Supertech Valves
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