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Manley 11637-8 Stainless Steel Intake Valve 36mm 2.740" Stem

(1997-2004 Ford F-150; 1996-2004 Ford Mustang; 1999-2004 Ford F-250 Super Duty; 1999-2004 Ford F-350 Super Duty; 1997-1999 Ford F-250; 2013-2016 Dodge Dart)

Manufacturer

Picture for manufacturer Manley

Part Number

11637-8
5 reviews
Sale Price

$202.55

2 left at this price

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Usually delivered within 2 days

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Product Details

The Manley 11637-8 is a premium stainless steel intake valve engineered for high-performance applications. Featuring a 36.0mm head diameter and .2740" stem diameter, this valve is precision-manufactured to deliver exceptional flow characteristics and durability in demanding environments.

Specifications:

  • Head Diameter: 36.0mm
  • Stem Diameter: .2740"
  • Overall Length: 4.650"
  • Tip Length: .470"
  • Underhead Angle/Radius: 15° x 1/2"
  • Margin: .060"
  • Seat Width: .080"
  • Top of Head: 9° Dish
  • Installed Height: Stock
  • Weight: 66 grams

Key Features:

  • Race Series stainless steel alloy construction for maximum strength and heat resistance
  • Pro-Flo design with reduced stem diameter in fillet area for increased airflow and reduced weight
  • Chrome-finished stems for enhanced durability and corrosion resistance
  • Swirl polished under heads for optimal flow dynamics
  • Fully hardened tips to withstand high-stress valve train operation
  • Completely machined combustion faces for precise sealing
  • Closely controlled margin heights and exact stem-to-seat concentricity

Manley Performance has been the industry standard in valve manufacturing for over 40 years, and this valve exemplifies their commitment to quality. Suitable for applications ranging from street performance builds to extreme race engines producing 1000+ horsepower, the Manley 11637-8 delivers the reliability and performance demanded by professional engine builders and enthusiasts alike.

Products specifications

Fits

1997-2004 Ford F-150; 1996-2004 Ford Mustang; 1999-2004 Ford F-250 Super Duty; 1999-2004 Ford F-350 Super Duty; 1997-1999 Ford F-250; 2013-2016 Dodge Dart

Approximate Weight (g)

66

Lock Groove Quantity

3-groove

Lock Groove Style

Conventional

Notes

SOHC engines with two valves per cylinder.

Overall Valve Length (in)

4.650 in.

Overall Valve Length (mm)

118.110mm

Quantity

Sold as a set of 8.

Swirl-Polished

Yes

Undercut Stem

No

Valve Head Diameter (in)

1.417 in.

Valve Head Diameter (mm)

36.000mm

Valve Head Style

9 degree dish

Valve Material

XH-426 stainless steel

Valve Seat Width (in)

0.080 in.

Valve Stem Diameter (in)

0.274 in.

Valve Stem Diameter (mm)

6.960mm

Valve Tip Length (in)

0.470 in.

Valve Tip Length (mm)

11.938mm

Thank you!

Great price, good e-mail communication and fast shipping. Positive experience with Autoplicity so far.

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.

I bought this item for my fiance and he loves it! He was completely happy with the price we paid...

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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