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Manley 11236-8 Severe Duty Intake Valve 2.020in Head NK-844 Stainless

(2014-2019 Chevrolet Corvette)

Manufacturer

Picture for manufacturer Manley

Part Number

11236-8
6 reviews
Sale Price

$301.07

Estimated ship date Thursday, November 19

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Product Details

The Manley 11236-8 Severe Duty Series Intake Valve is engineered for high-performance and race applications demanding superior durability and precise flow characteristics. Machined from NK-844 stainless steel with a chrome-plated stem and hardened tip, each valve is swirl polished and fully machined to exacting tolerances for consistent, reliable performance under extreme conditions.

These intake valves feature a 2.020 in. head diameter and are designed as a direct upgrade over stock, with an installed height running 0.100 in. longer than stock for improved valve train geometry in performance builds. The straight stem design enhances durability and reduces side loading, making this valve ideal for forced induction, high-lift camshaft, and racing applications.

Specifications:

  • Valve Type: Intake
  • Head Diameter: 2.020 in.
  • Stem Diameter: 0.3415 in. (11/32)
  • Overall Length: 5.015 in.
  • Installed Height: 0.100 in. longer than stock
  • Tip Length: 0.250 in.
  • Underhead Angle/Radius: 10 degrees x 3/8 in.
  • Margin: 0.070 in.
  • Seat Width: 0.080 in.
  • Top of Head: 7-degree dish
  • Weight: 113 grams (per valve)
  • Stem Material: Chrome-plated
  • Body Material: NK-844 Stainless Steel
  • Tip: Hardened
  • Stem Type: Straight

Manley's Severe Duty Series valves are a proven choice for racers and performance engine builders looking for a reliable, competition-grade upgrade. Each valve is swirl polished for optimized flow and fully machined for dimensional accuracy, ensuring drop-in fitment and long service life even in the most demanding race environments.

Products specifications

Fits

2014-2019 Chevrolet Corvette

Approximate Weight (g)

95

Lock Groove Quantity

1-groove beadlock style

Lock Groove Style

Beadlock

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)

1.940 in.

Valve Head Diameter (mm)

49.3mm

Valve Head Style

5 degree dish

Valve Material

NK-844 stainless steel

Valve Seat Width (in)

0.100 in.

Valve Stem Diameter (in)

0.274 in.

Valve Stem Diameter (mm)

7.0mm

Valve Tip Length (in)

0.290 in.

Valve Tip Length (mm)

7.37mm

Very happy with my purchase and product from Autoplicity! Highly recommend.

Great seller, price, and shipping was fast. I will do business with again.

I placed the order on Monday, and the package was delivered two days later, on Wednesday...and that was with FREE SHIPPING!!! It was also at the best price I could find. What more can you ask?

Autoplicity had the part I needed at the best price I could find anywhere, and with their quick shipping I had the part in less than a week. Thanks Autoplicity

Item arrived promptly (4 days after order), price was good and item was as described.

Super fast shipping.<br>I ordered husky front and rear floor mat for 2012 Prius.<br>It was delivered in 2 business days.<br>The product quality is very good.<br><br>Thank you,

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