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Supertech Performance NIVN-1010 High-Performance Engine Valve

(1993-1999 Nissan Altima; 1991-1998 Nissan 240SX)

Manufacturer

Picture for manufacturer Supertech Performance

Part Number

NIVN-1010
17 reviews
Sale Price

$22.07

Estimated ship date Friday, November 20

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No Hassle Returns

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Live-in-stock inventory

Live-in-stock inventory

Fitment guaranteed

Fitment guaranteed

Product Details

Supertech Performance brings over 20 years of manufacturing expertise to their engine valve lineup. Built through intensive testing and close collaboration with professional engine builders, Supertech valves are engineered for high flow rate, superior durability, and consistent quality across a wide range of applications.

Supertech recognizes that every engine has unique demands, which is why their valves are offered in multiple materials and configurations to suit naturally aspirated, turbocharged, and supercharged builds alike.

Available Materials:

  • Stainless Steel (EV8 / 21-4N Alloy): One-piece forged construction for maximum strength and reliability. EV8 (21-4N) is the primary alloy used for both intake and exhaust valves, with additional alloys and heat treatments available for specialized applications.
  • Inconel 751 Nickel-Base Alloy: Designed for extreme-heat exhaust applications, including turbocharged and supercharged engines where exhaust valve temperatures reach critical levels.

Coating Options:

  • Chrome Coating: A widely used treatment in performance valve applications, providing excellent surface hardness and wear resistance.
  • Black Nitride Coating: A hardening treatment that produces a smoother surface finish than chrome, resulting in reduced friction between the valve stem and guide for improved longevity and performance.

Sold individually — one valve per unit. Order the quantity that matches the total number of valves required for your engine build (e.g., order 16 for a 16-valve engine).

Products specifications

Fits

1993-1999 Nissan Altima; 1991-1998 Nissan 240SX

Head Dia

37.10mm (+0.5)

Length

101.32mm

Material

Black Nitrided

Stem Dia

6.97mm

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