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Supertech Performance VWEVI-1035 Inconel Exhaust Valve Oversize - 0.5mm

(1990-1992 Volkswagen Jetta GLI 16-Valve; 1990-1993 Volkswagen Passat; 1990-1997 Volkswagen Golf; 1990-1991 Audi 90 Quattro 20v; 1990-1991 Audi Coupe Quattro 20v)

Manufacturer

Picture for manufacturer Supertech Performance

Part Number

VWEVI-1035
9 reviews
Sale Price

$31.81

Estimated ship date Thursday, November 19

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Product Details

The Supertech Performance VWEVI-1035 is a high-performance Inconel exhaust valve engineered for VW 2.0L 16V engines. Sized at 28.50mm head diameter (+0.5mm oversize) with a 7.00mm stem diameter and 98.20mm overall length, this valve features an undercut stem and dished head design for improved flow characteristics and reduced valve-train mass. Sold individually — order the quantity matching your engine's valve count.

Key Features:

  • Inconel Construction: Nickel-based Inconel alloy delivers exceptional heat resistance, making it the ideal choice for high-output, turbocharged, or supercharged applications where exhaust temperatures are extreme
  • +0.5mm Oversize Head: 28.50mm head diameter provides a precise oversize fit for use with recut or replacement valve seats
  • Undercut Stem Design: Reduces valve weight and improves port flow by minimizing obstruction at the valve guide
  • Dished Head Profile: Optimized for improved combustion chamber dynamics and reduced weight
  • One-Piece Forged Construction: Manufactured from a single forging for superior structural integrity and long-term durability under racing conditions
  • Heat Treatment Process: Each valve undergoes a specialized heat treatment to achieve the optimal hardness profile for performance engine use
  • Black Nitride or Chrome Coating Available: Black Nitride coating provides a smoother surface finish than chrome, reducing friction between the valve stem and guide, while chrome coating offers proven performance in high-output applications

Specifications:

  • Valve Type: Exhaust
  • Head Diameter: 28.50mm (+0.5mm oversize)
  • Stem Diameter: 7.00mm
  • Overall Length: 98.20mm
  • Material: Inconel (Nickel-Base Alloy)
  • Head Style: Undercut / Dished

Sold per valve. Order the quantity required for your specific engine build.

Products specifications

Fits

1990-1992 Volkswagen Jetta GLI 16-Valve; 1990-1993 Volkswagen Passat; 1990-1997 Volkswagen Golf; 1990-1991 Audi 90 Quattro 20v; 1990-1991 Audi Coupe Quattro 20v

Head Dia

28.50mm (+0.5)

Length

98.20mm

Material

Inconel

Stem Dia

6.96mm

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