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Manley 11314-8 Race Series NK-842 Stainless Intake Valves

Manufacturer

Picture for manufacturer Manley

Part Number

11314-8
4 reviews
Sale Price

$188.69

2 left at this price

delivery box

Usually delivered within 2 days

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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

Built from NK-842 stainless steel with chrome stems and hardened tips, these valves deliver the durability and precision required for demanding race engine builds operating under 8,000 RPM.

Each valve features a Pro Flo undercut stem with a 12° x 3/8 in. underhead angle and radius, promoting improved airflow past the valve head. The swirl-polished underhead area and fully machined combustion face optimize flow characteristics and combustion 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° x 3/8 in. (Pro Flo)
  • Margin: 0.050 in.
  • Seat Width: 0.080 in.
  • Top of Head: 7° Dish
  • Weight: 109 grams per valve
  • Material: NK-842 Stainless Steel
  • Stem Finish: Chrome with Hardened Tip

Important: Measure existing valve head and stem diameter prior to ordering to ensure proper fitment.

Products specifications

Approximate Weight (g)

131

Lock Groove Quantity

1-groove

Lock Groove Style

Conventional

Overall Valve Length (in)

5.000 in.

Overall Valve Length (mm)

127.0mm

Quantity

Sold as a set of 8.

Swirl Polished

Yes

Undercut Stem

No

Valve Head Diameter (in)

2.140 in.

Valve Head Diameter (mm)

54.4mm

Valve Head Style

7 degree dish

Valve Material

NK-842 stainless steel

Valve Seat Width (in)

0.080 in.

Valve Stem Diameter (in)

0.372 in.

Valve Stem Diameter (mm)

9.4mm

Valve Tip Length (in)

0.275 in.

Valve Tip Length (mm)

6.99mm

Autoplicity was great, I ordered my springs late Monday night and I received a shipment order confirmation number early Wednesday. So basically 1 business day and my order was out the door, pretty impressive. Can't wait 'till it gets here! Thanks Autoplicity!

Ordered a go pro hero 2 motorsport edition late friday had it at my front door step the next Thursday with no issue. Great price, fast shipping. Product was packed well and came perfect from the factory. A+

Super easy and quick

The shipping was fast, although I couldn't get it the first day because they require signature for delivery. I guess it's an added safety measure. Thank you! Will shop buy from again!

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