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Manley 11641-10 Race Series NK-842 Stainless Steel Intake Valve Set - 2.000 in. Head, Pro Flo

(1998-2002, 2008-2010 Dodge Viper)

Manufacturer

Picture for manufacturer Manley

Part Number

11641-10
4 reviews
Sale Price

$248.08

Estimated ship date Friday, November 27

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Product Details

The Manley 11641-10 is a Race Series stainless steel intake valve engineered for bracket racing, oval track, and high-performance street engine applications. Constructed from NK-842 stainless steel with a chrome stem and hardened valve tip, these valves deliver the durability and precision required in demanding racing environments. The undercut Pro Flo stem design (12-degree x 3/8 in. underhead angle/radius) reduces valve train weight and promotes improved airflow into the combustion chamber.

Each valve features a swirl-polished underhead area and a fully machined combustion face to optimize airflow efficiency and combustion performance. The 7-degree dish top-of-head geometry and tight-tolerance machining ensure consistent seating and long-term reliability under sustained high-RPM operation.

Specifications:

  • Valve Type: Intake
  • Material: NK-842 Stainless Steel
  • Head Diameter: 2.000 in.
  • Stem Diameter: 0.3415 in. (11/32)
  • Overall Length: 4.900 in.
  • Tip Length: 0.250 in.
  • Installed Height: Stock
  • Underhead Angle/Radius: 12 degrees x 3/8 in. (Pro Flo)
  • Margin: 0.050 in.
  • Seat Width: 0.080 in.
  • Top of Head: 7-degree dish
  • Weight: 109 grams per valve

Note: Measure existing valve head and stem diameter before ordering to confirm correct fitment.

Products specifications

Fits

1998-2002, 2008-2010 Dodge Viper

Great pricing. (Check on google and they were the cheapest and had great reviews.) Quick shipment and everything is as they said it would be.

Best price I could find anywhere and it shipped right away!

Great experience. I would definitely recommend.

great stuff cheap price. fast shipping

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