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Manley 11380-8 Pro Flo Intake Valve NK-842 Stainless 2.000" Head

Manufacturer

Picture for manufacturer Manley

Part Number

11380-8
4 reviews
Sale Price

$188.69

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

The Manley 11380-8 Pro Flo Race Series Intake Valve is engineered for bracket racing, oval track competition, and high-performance street engines. Machined from NK-842 stainless steel, each valve features a chrome-plated stem, hardened tip, and an undercut stem design for improved airflow. The swirl-polished finish and full CNC machining ensure consistent performance and longevity under demanding conditions.

Key Specifications:

  • Valve Type: Intake
  • Head Diameter: 2.000 in.
  • Stem Diameter: 0.3415 in. (11/32)
  • Overall Length: 4.900 in.
  • Installed Height: Stock
  • Tip Length: 0.250 in.
  • 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 (3.84 oz.) per valve

Construction Highlights:

  • NK-842 stainless steel construction for superior heat and corrosion resistance
  • Chrome-plated stem for reduced friction and improved durability
  • Hardened valve tip for extended wear life
  • Undercut stem design promotes increased airflow and reduced valve weight
  • Swirl-polished finish for optimized flow characteristics
  • Fully machined for precise, consistent tolerances

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

Products specifications

Approximate Weight (g)

134

Lock Groove Quantity

1-groove

Lock Groove Style

Conventional

Notes

Designed for the Indy 440-1 cylinder heads.

Overall Valve Length (in)

5.344 in.

Overall Valve Length (mm)

137.2mm

Quantity

Sold as a set of 8.

Swirl Polished

Yes

Undercut Stem

No

Valve Head Diameter (in)

2.190 in.

Valve Head Diameter (mm)

55.6mm

Valve Head Style

6 degree dish

Valve Material

NK-842 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)

0.250 in.

Valve Tip Length (mm)

6.35mm

Boom baby!!!

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!

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

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