My Account
My Garage
Shopping Cart
MY GARAGE Select Vehicle
MY GARAGE

Manley 11826-8 Severe Duty Stainless Steel Intake Valve - 2.020 NK-844

(2003-2008 Nissan 350Z)

Manufacturer

Part Number

11826-8
Sale Price

$301.07

In Stock (10+)

delivery box

Usually delivered within 2 days

Authorize Seller Badge
No Hassle Returns

No Hassle Returns

Live-in-stock inventory

Live-in-stock inventory

Fitment guaranteed

Fitment guaranteed

Product Details

The Manley 11826-8 is a severe duty performance intake valve engineered for high-performance race engines. Constructed from premium NK-844 stainless steel, this valve features a chrome stem and hardened valve tip for exceptional durability under extreme conditions. The superior material is swirl polished and fully machined to exacting tolerances, while the straight stem design provides increased strength and longevity in demanding applications.

Key Specifications:

  • Valve Type: Intake
  • Head Diameter: 2.020 inches
  • Stem Diameter: 0.3415 inches (11/32")
  • Overall Length: 5.015 inches
  • Installed Height: 0.100 inches longer than stock
  • Tip Length: 0.250 inches
  • Underhead Angle/Radius: 10 degrees x 3/8 inch
  • Margin: 0.070 inches
  • Seat Width: 0.080 inches
  • Top of Head: 7 degree dish
  • Weight: 113 grams

Ideal for racing applications where reliability and performance are critical, this Manley severe duty valve delivers the strength and precision required for high-RPM operation and increased valve spring pressures.

Products specifications

Fits

2003-2008 Nissan 350Z

Approximate Weight (g)

113

Lock Groove Quantity

1-groove

Lock Groove Style

Conventional

Overall Valve Length (in)

5.026 in.

Overall Valve Length (mm)

127.660mm

Quantity

Sold as a set of 8.

Swirl Polished

Yes

Undercut Stem

No

Valve Head Diameter (in)

2.020 in.

Valve Head Diameter (mm)

51.308mm

Valve Head Style

5 degree dish

Valve Material

NK-844 stainless steel

Valve Seat Width (in)

0.080 in.

Valve Stem Diameter (in)

0.341 in.

Valve Stem Diameter (mm)

8.661mm

Valve Tip Length (in)

0.250 in.

Valve Tip Length (mm)

6.350mm

I ordered an AEM intake for my F-150 on Christmas day and received it on the 29th. I would absolutely recommend this site to anyone looking for car parts - they had the lowest price by far and shipped fast. Great job!

very good price fast shipping

Found Autoplicity by doing Google search looking for Corsa Sport Axle Back exhaust for my 2008 GT500. By far the best price, even cheaper than other big companies with free shipping by far. Ordered them on Thursday afternoon and got them 24 hours later in NY with the standard shipping. Could'nt be happier.

Online ordering is easy. Great experience!

fast, polite service when we had a question

very good price and prompt shipping. good choice of merchindise<br>to chose from. helpful in finding the correct item.

Share icon
Return Policy
Returns are easy at THMotorsports

Not happy with a purchase? No problem. We've made returning items as easy as possible. And most purchases can be returned for free for 30 days. Learn more about our Returns Policy