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Manley 11327-8 Race Flo NK-842 Stainless Intake Valve Set - 2.000 in. Head, 11/32 Stem

Manufacturer

Picture for manufacturer Manley

Part Number

11327-8
7 reviews
Sale Price

$188.69

2 left at this price

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Usually delivered within 2 days

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No Hassle Returns

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Live-in-stock inventory

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Fitment guaranteed

Fitment guaranteed

Product Details

Constructed from NK-842 stainless steel with a chrome-plated stem and hardened valve tip, these valves are built to withstand the demands of engines operating under 8,000 RPM.

Each valve features a swirl-polished underhead area and fully machined combustion face, optimizing airflow and combustion efficiency. The Pro Flo underhead profile — a 12-degree angle with a 3/8 in. radius — provides meaningful flow improvements. The undercut stem further enhances flow characteristics without requiring head porting.

Specifications:

  • Valve Type: Intake
  • 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
  • Material: NK-842 Stainless Steel

Note: Measure existing valve head and stem diameter before ordering to ensure proper fitment.

Products specifications

Approximate Weight (g)

113

Lock Groove Quantity

1-groove

Lock Groove Style

Conventional

Overall Valve Length (in)

5.465 in.

Overall Valve Length (mm)

138.8mm

Quantity

Sold as a set of 8.

Swirl Polished

Yes

Undercut Stem

No

Valve Head Diameter (in)

1.600 in.

Valve Head Diameter (mm)

40.6mm

Valve Head Style

9 degree dish

Valve Material

XH-426 stainless steel

Valve Seat Width (in)

0.100 in.

Valve Stem Diameter (in)

0.342 in.

Valve Stem Diameter (mm)

8.7mm

Valve Tip Length (in)

0.290 in.

Valve Tip Length (mm)

7.37mm

Love the company. Just wished the site had more info on parts.

Excellent service and communication.

I got the items exactly as described with VERY fast shipping. i highly recommend them to everyone. And I will definitely be shopping there again!

Great prices, clear information and fast shipping!

Thanks for the great price

Super fast shipping, exactly as ordered, no drama, problems or complications

Although there was a mix up with the shipping on my order customer service was helpful and expedited the solution and made it worth my trouble. I will be keeping Autoplicity in mind for any other parts I might need for my Jeep.

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