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Manley 11306-8 Pro Flo Intake Valve NK-842 Stainless 2.000in Head

Manufacturer

Picture for manufacturer Manley

Part Number

11306-8
5 reviews
Sale Price

$202.55

2 left at this price

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Usually delivered within 2 days

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Live-in-stock inventory

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Fitment guaranteed

Fitment guaranteed

Product Details

The Manley 11306-8 Pro Flo Race Series Intake Valves deliver competition-grade performance for bracket racing, oval track, and high-performance street engine builds. Engineered from NK-842 stainless steel with a chrome-plated stem and hardened tip, these valves are built to withstand the demands of aggressive performance applications.

Each valve features a swirl-polished finish and is fully machined with an undercut stem to promote superior airflow into the combustion chamber. The Pro Flo underhead profile — a 12-degree angle with a 3/8 in. radius — further enhances flow characteristics for maximum engine efficiency.

Key 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
  • Valve Weight: 109 grams each
  • Stem Finish: Chrome
  • Material: NK-842 Stainless Steel

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

Products specifications

Approximate Weight (g)

110

Lock Groove Quantity

1-groove

Lock Groove Style

Conventional

Overall Valve Length (in)

5.010 in.

Overall Valve Length (mm)

127.3mm

Quantity

Sold as a set of 8.

Swirl Polished

Yes

Undercut Stem

No

Valve Head Diameter (in)

2.055 in.

Valve Head Diameter (mm)

52.2mm

Valve Head Style

5 degree dish

Valve Material

NK-842 stainless steel

Valve Seat Width (in)

0.080 in.

Valve Stem Diameter (in)

0.311 in

Valve Stem Diameter (mm)

7.9mm

Valve Tip Length (in)

0.290 in.

Valve Tip Length (mm)

7.37mm

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