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Supertech Performance MCEVI-1007FS Inconel Exhaust Valve +1mm Oversize Flat Head Single Groove

(2002-2007 Mini Cooper)

Manufacturer

Picture for manufacturer Supertech Performance

Part Number

MCEVI-1007FS
9 reviews
Sale Price

$33.94

Estimated ship date Saturday, November 21

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Product Details

The Supertech Performance MCEVI-1007FS is a high-performance Inconel 751 exhaust valve engineered for forced-induction applications demanding exceptional heat resistance and durability. Manufactured to a +1mm oversize specification, this valve features a 24.2mm head diameter, 5.92mm stem diameter, and an overall length of 118.37mm with a flat head profile and single-groove keeper design.

Key Features:

  • Inconel 751 Nickel-Base Alloy Construction — Purpose-built for exhaust valves subjected to extreme heat, making it the preferred material choice for turbocharged and supercharged engine builds
  • +1mm Oversize Head Diameter — 24.2mm head allows for cylinder head seat cutting to restore or improve flow in worn or ported heads
  • Flat Head / Single Groove Design — Requires single-groove valve keepers (KPR-6T-ST); verify keeper compatibility before installation
  • One-Piece Forged Construction — Delivers superior strength and long-term reliability compared to multi-piece valve designs
  • Black Nitride or Chrome Coating Options — Supertech's Black Nitride treatment provides a microhardness of 800HV minimum, a smoother stem surface than chrome, and full-valve coverage rather than stem-only application; the nitrided layer bonds at a microscopic level and will not flake or crack under impact
  • Precision Engineered Tolerances — Developed in collaboration with professional engine builders for consistent performance across high-demand motorsport applications

This valve is sold individually (per valve). Order the exact quantity needed for your engine build — for example, a 4-cylinder engine with 4 exhaust valves requires a quantity of 4.

Products specifications

Fits

2002-2007 Mini Cooper

Head Dia

24.20mm (+1.0)

Length

118.37mm

Material

Inconel

Stem Dia

5.92mm

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