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Manley 11636-8 Stainless Steel Performance Intake Valve - 44.5mm

(1999-2004 Ford F-150; 1999-2004 Ford Mustang; 1999-2004 Ford F-250 Super Duty; 1999-2004 Ford F-350 Super Duty; 1999 Ford F-250)

Part of: Manley Stainless Steel Performance Intake Valve

Other options in this family: Manley 11616-8 Manley 11615-8 Manley 11617-8 Manley 11632-8 Manley 11618-8

Manufacturer

Picture for manufacturer Manley

Part Number

11636-8
11 reviews
Sale Price

$202.55

In Stock (10+)

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Usually delivered within 2 days

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Product Details

The Manley 11636-8 is a high-performance stainless steel intake valve designed for demanding automotive applications. Featuring a 44.5mm head diameter and .2750" stem diameter, this valve delivers exceptional flow characteristics and durability for high-performance engine builds.

Key Specifications:

  • Head Diameter: 44.5mm
  • Stem Diameter: .2750"
  • Overall Length: 4.705"
  • Tip Length: .470"
  • Underhead Angle/Radius: 10 x 3/8"
  • Margin: .050"
  • Seat Width: .080"
  • Top of Head: 5 Dish
  • Weight: 76 grams

Premium Construction Features:

  • Manufactured from Manley's Race Series stainless steel alloy for superior strength and heat resistance
  • Chrome-plated stems for enhanced durability and reduced wear
  • Swirl-polished under heads for optimized flow characteristics
  • Fully hardened tips to withstand high-stress valve train operation
  • Completely machined combustion faces ensure precise sealing
  • Pro-Flo design reduces stem diameter in the fillet area for increased airflow and reduced weight
  • Exact stem-to-seat concentricity for consistent performance

Backed by over 40 years of valve manufacturing expertise, Manley Performance valves are engineered to outflow and outperform in even the most severe racing environments. Suitable for applications ranging from street performance builds to 1000+ horsepower race engines competing at the drag strip.

Products specifications

Fits

1999-2004 Ford F-150; 1999-2004 Ford Mustang; 1999-2004 Ford F-250 Super Duty; 1999-2004 Ford F-350 Super Duty; 1999 Ford F-250

Approximate Weight (g)

76

Lock Groove Quantity

1-groove

Lock Groove Style

Conventional

Overall Valve Length (in)

4.705 in.

Overall Valve Length (mm)

119.507mm

Quantity

Sold as a set of 8.

Swirl Polished

Yes

Undercut Stem

Yes

Valve Head Diameter (in)

1.751 in.

Valve Head Diameter (mm)

44.5mm

Valve Head Style

5 degree dish

Valve Material

NK-842 stainless steel

Valve Seat Width (in)

0.080 in.

Valve Stem Diameter (in)

0.275 in.

Valve Stem Diameter (mm)

6.985mm

Valve Tip Length (in)

0.470 in.

Valve Tip Length (mm)

11.938mm

Great service site easy to navigate and parts easy to find great place to shop.

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Quick and easy. No problem at all. Would recommend them.

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Best price, quick delivery.

Prices are great on this site. The layout and checkout process are easy to use; Google checkout is definitely a plus. Shipping could be a little faster, especially if they had drop ships from their supplies for items not currently in stock. Overall good service and no problems.

so far so good

I got a cargo box from autoplicity. As far as online purchases go to delivery, everything went perfectly. The only comment I have for Autoplicity would be to send out a confirmation email when the purchase is first made. The first communication wasn't until 3 days after I made the purchase.

Good site easy to search for and find parts. The lowest prices on almost every part I have been able to find for my truck.

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