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Supertech

Supertech Toyota Supra B58B30 28.5x5.95x100.1mm Dish Inconel Exhaust Valve - Set of 12

$514.32

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Supertech Inconel exhaust valves for Toyota Supra B58B30. Set of 12.

Key Features

  • Fits Toyota Supra B58B30 engines.
  • Set includes 12 Inconel exhaust valves.
  • Made from Inconel, a high-temperature superalloy resistant to heat and corrosion.
  • Features a dish design with a 28.5mm head diameter.
  • Stem diameter is 5.95mm.
  • Overall length is 100.1mm.
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About this part

Product Details

Supertech is known for making well-built valvetrain components, and this set of 12 Inconel exhaust valves for the Toyota Supra B58B30 engine is a prime example. These aren't your everyday valves; they're built to handle the extreme heat and stress found in high-performance applications. If you're rebuilding the top end of your Supra and want components that can stand up to serious use, these valves are a solid option.

The key here is the Inconel material. This is a nickel-chromium-based superalloy that's incredibly resistant to high temperatures and corrosion. Because exhaust valves operate in one of the hottest environments in your engine, using Inconel helps prevent valve distortion, burning, and premature failure. These valves feature a dish design with specific dimensions: 28.5mm head diameter, 5.95mm stem diameter, and a 100.1mm overall length. This precise sizing ensures they fit correctly within the valve guides and seal properly against the valve seat, which is critical for maintaining compression and engine performance.

This set includes all 12 exhaust valves needed for a complete engine rebuild. When installing, pay close attention to the manufacturer's recommended valve seat runout and lash settings to ensure optimal performance and longevity. Using quality valves like these is a significant step in building a reliable, high-output engine.

Specifications

Brand
Supertech
Manufacturer Part #
TEVI-1058-12

Frequently Asked Questions

Supertech Toyota Supra B58B30 28.5x5.95x100.1mm Dish Inconel Exhaust Valve - Set of 12

$514.32