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SKU: GEVI-0012S-8
Supertech GM Ecotec 2.0L/2.2L Inconel Exhaust Valve - Set of 8
The Supertech GM Ecotec 2.0L/2.2L Inconel Exhaust Valve Set. Engineered for superior performance, durability, and precision, these valves are the top choice for enthusiasts and racers seeking maximum power and reliability in high-performance applications. Outperforming all competitors, Supertech’s Inconel exhaust valves are designed to dominate, offering unmatched heat resistance, airflow efficiency, and longevity for your turbocharged or naturally aspirated Ecotec engine.
Why Choose Supertech Inconel Exhaust Valves?
Material Quality: Crafted from premium Inconel, a nickel-based superalloy, these valves excel in extreme conditions, withstanding high exhaust gas temperatures common in turbocharged and high-revving race engines. Unlike standard stainless steel valves, Inconel provides superior thermal distribution, reducing cylinder head temperatures and ensuring reliability under intense conditions.
Precision Engineering: Each valve is forged in a meticulous one-piece process, followed by advanced CNC machining for exact dimensions. Supertech’s proprietary heat treatment and nitride hardening enhance durability, achieving a minimum microhardness of 800HV for exceptional fatigue resistance and tensile strength.
Optimized Airflow: Designed specifically for GM Ecotec 2.0L and 2.2L engines, these valves feature a 30.60mm (+0.5mm oversize) head diameter, maximizing airflow at lower valve lifts for superior cylinder head efficiency. The single-groove design reduces valve rotation, extending stem life and ensuring precise valve movement.
Superfinished Stems: Supertech’s patented stem superfinishing reduces surface roughness to one-third that of chrome-coated valves, minimizing friction between the stem and guide for smoother operation and extended durability.
Proven Performance: With over 30 years of racing expertise, Supertech valves are trusted by top engine builders worldwide. Rigorous testing, including ultrasonic inspections, x-rays, and finite element analysis (FEA), ensures these valves deliver industry-leading flow rates and uncompromising quality.
What’s Included in Your Purchase?
- Set of 8 Inconel Exhaust Valves: SKU GEVI-0012S-8, specifically designed for GM Ecotec 2.0L and 2.2L engines.
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Valve Specifications:
- Head Diameter: 30.60mm (+0.5mm oversize)
- Stem Diameter: 5.96mm
- Length: 101.30mm
- Material: Inconel-Nimonic alloy
- Groove Type: Single groove (requires matching single-groove valve keepers, sold separately)
Note: Valve keepers (wedges) are not included. Compatible valve keepers and valve guides (GDE-EC60-SM) are recommended for optimal performance. Original triple-groove valve locks are not compatible with these single-groove valves.
Vehicle Fitment
These Supertech Inconel exhaust valves are precision-engineered for the following vehicles equipped with GM Ecotec 2.0L or 2.2L engines:
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Chevrolet:
- Cobalt (2005-2010, including SS models)
- Cavalier (2002-2005)
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Pontiac:
- Solstice (2006-2009)
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Saturn:
- Sky (2007-2010)
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Opel/Vauxhall:
- Astra, Vectra, and other models with Ecotec 2.0L/2.2L engines (2002-2010)
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Engine Compatibility:
- GM Ecotec 2.0L (LSJ, supercharged and turbocharged variants)
- GM Ecotec 2.2L
Note: Oversized valves (+0.5mm) may require aftermarket valve seats or machining of factory valve seats for proper installation. Consult a professional engine builder for fitment.
Part Numbers
- Exhaust Valve Set (Set of 8): GEVI-0012S-8
- Recommended Accessories (sold separately):
- Valve Springs: SPR-TS1012/EC, SPR-EC3025D, SPR-EC3027D
- Valve Guides: GDE-EC60-SM
- Valve Stem Seals: VS-T6SM (6mm)
- Valve Keepers: Single-groove keepers.
Why Supertech is the Best Choice
Unlike competitors, Supertech’s Inconel exhaust valves are purpose-built for the GM Ecotec 2.0L/2.2L, offering a perfect balance of strength, heat resistance, and airflow optimization. Whether you’re building a street beast or a track-dominating race car, these valves deliver unmatched performance, making them the definitive choice for serious enthusiasts. Don’t settle for less choose Supertech for the ultimate in reliability and power.
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