SKU: 32504251446

Supertech Black Nitride Intake Valves

Sale price$119.65 Regular price$132.94
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Ships within 48 hours · Estimated delivery Jul 16 - Jul 21

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Description

Supertech Black Nitride Intake ValvesSupertech Performance uses their experience of more than 20 years in the manufacturing of racing valves, do intensive testing and work very closely with many engine builders in order to continuously improve and provide the market with the best possible product for every application. High flow rates, durability and quality are of great concern to Supertech Performance. Black Nitride Coating This is a hardening treatment that even though it is not

Supertech Performance uses their experience of more than 20 years in the manufacturing of racing valves, do intensive testing and work very closely with many engine builders in order to continuously improve and provide the market with the best possible product for every application. High flow rates, durability and quality are of great concern to Supertech Performance.

Black Nitride Coating

This is a hardening treatment that even though it is not widely used as the chrome coating, it has several benefits and is becoming very popular, mainly for European and Japanese applications. The microhardness is higher than the stainless steel base material, keeping good ductility beneath the hard nitrided layer (microhardness is 800HV minimum). Surface Finish is smoother than with chromed stems, having less friction between stem and guide. Value seat surface is harder with the nitrided layer, lasting longer with lead free fuels, alcohols, nitro or other "explosive" mixes. Matches any kind of seats (nodular iron seats, steel powder metal seats, hard aluminum-copper seats or beryllium copper seats).

Higher RPM engines take full advantage of all previous features. The higher the engine speed the bigger the power loss due to internal engine friction! The black nitride layer reduces this power loss due to less valve-guide friction.

The nitrided layer is adhered to the base material at a microscopic level, so does not "flake" or brake when the valves bend due to impacts with the pistons. The Black Nitride applies to the whole valve while the chrome coating is only applied to the stem. All valves are swirl polished, have stem undercut and a hardened tip.

Includes a set of 8 valves

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
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Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 32504251446

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Keila Cruz
West Palm Beach, US
★★★★★ 5
Great quality for the price.
Color: pink
Very comfortable and supportive. The extra cushioning helps during workouts, and it stays in place without slipping.
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Reviewed in the United States on June 4, 2026
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Diagnara
Grantham, US
★★★★★ 5
Muy buena calidad
Color: pink
Amando demasiado este producto muy práctico y fácil de mover lo ame lo estaría comprando nuevamente
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Reviewed in the United States on June 4, 2026
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MK
Charlottesville, US
★★★★★ 2
Quality
Color: white
Says non slip, but I slip all the time.
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Reviewed in the United States on May 22, 2026
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Catalina Vazquez
Louisville, US
★★★★★ 4
Es económico
Color: pink
No es muy suave
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Reviewed in the United States on May 26, 2026
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Vivian Lopez
New York, US
★★★★★ 5
Perfect thickness and softness
Color: pink
Perfect for Pilates. The color is so pretty
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Reviewed in the United States on June 3, 2026

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