SKU: 21016000930

Supertech Performance MAIVN-2304F Mazda / Ford Duratec 2.0 /2.3Lts. Intake Valve 36 x5.48 x 103.40mm /SS/ Blk. Nitrided/ + 1mm /Flat/Undercut/Backcut

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Description

Supertech Performance MAIVN-2304F Mazda / Ford Duratec 2.0 /2.3Lts. Intake Valve 36 x5.48 x 103.40mm /SS/ Blk. Nitrided/ + 1mm /Flat/Undercut/BackcutSupertech Performance MAIVN 2304F Mazda Ford Duratec 2. 0 2. 3Lts. Intake Valve 36 x5. 48 x 103. 40mm SS Blk. Nitrided + 1mm Flat Undercut Backcut Supertech valves are the best on the market, made from one piece of forged stainless steel for the ultimate in strength and durability. Supertech valves go through a special heat treatment process that obtains the right amount of harness for each engine to ensure the ultimate valve for your performance

Supertech Performance MAIVN-2304F Mazda / Ford Duratec 2.0 /2.3Lts. Intake Valve 36 x5.48 x 103.40mm /SS/ Blk. Nitrided/ + 1mm /Flat/Undercut/Backcut

Supertech valves are the best on the market, made from one piece of forged stainless steel for the ultimate in strength and durability. Supertech valves go through a special heat treatment process that obtains the right amount of harness for each engine to ensure the ultimate valve for your performance motor. Supertech offers their valves in either chrome coating, used in high performance valves, or hardened black nitrided which is most popular in European and Japanese motors.

Supertech High Performance Race Engine Valves features:

  • 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.
  • Valve 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's 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.
Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
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: 21016000930

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Aaron
Battle Creek, US
★★★★★ 5
good shoes
Size: 8, Color: Black/White/Iron Grey
better than what i estimated. it took a day for θem 2 sink in, letting me feel full eφect.
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Reviewed in the United States on May 7, 2026
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personas de 40 aÑos en adelante
Fort Morgan, US
★★★★★ 4
son comodos
Size: 9, Color: Black/White/Iron Grey
muy satisfecha con esta compra,
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Reviewed in the United States on April 29, 2026
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Mark Griffin
Omaha, US
★★★★★ 5
True to size really nice!
These sweaters are made of good quality. Thicker than I expected in a good way. Love the wrist band. Not sloppy. Snug and crisp fit. Careful though, very true to size. My xl has to be hang dried then fluffed in the dryer. Overall a great pullover.
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Reviewed in the United States on May 10, 2026
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Jan
Charlottesville, US
★★★★★ 5
Great quality, color, look and price! So happy the yellow was back in stock when I purchased
Oh my gosh. I absolutely love this sweater on my 44-year-old son. He loves it as well. He is wearing a size medium in the picture. Great quality, launders as well. He simply washes it in the machine with cold water and then puts it on a hanger to dry. It is one of his faves!
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Reviewed in the United States on March 16, 2026
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Amazon Customer
New York, US
★★★★★ 5
Comfortable Sweater!
Great quality sweater. True to size! Comfy, too!
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Reviewed in the United States on April 4, 2026

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