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Manley 11620-8 Stainless Steel Intake Valve Head Diameter - 2.165

(2007-2008 GMC Yukon XL 1500; 2007-2008 GMC Sierra; 2007-2008 GMC Yukon XL Denali; 2008 Hummer H2; 2007-2008 Cadillac Escalade + 2 more models)

Manufacturer

Part Number

11620-8
Sale Price

$202.55

In Stock (10+)

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Usually delivered within 2 days

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No Hassle Returns

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Product Details

The Manley 11620-8 is a high-performance stainless steel intake valve engineered for demanding racing and street performance applications. This valve features a 2.165" head diameter, .3133" stem diameter, and 4.900" overall length, making it suitable for high-performance engine builds requiring precise specifications and exceptional flow characteristics.

Key Specifications:

  • Head Diameter: 2.165"
  • Stem Diameter: .3133"
  • Overall Length: 4.900"
  • Tip Length: .160"
  • Underhead Configuration: Pro Flo 12 x 3/8"
  • Margin: .055"
  • Seat Width: .100"
  • Top of Head: 7 Dish
  • Installed Height: Stock
  • Weight: 119 grams

Performance Features:

  • Race Series stainless steel alloy construction for extreme durability
  • Pro-Flo design with reduced stem diameter in fillet area for increased airflow and reduced weight
  • Chrome-plated stems for enhanced wear resistance
  • Swirl polished underheads for optimized flow characteristics
  • Fully hardened tips for extended service life
  • Completely machined combustion faces for precise sealing
  • Exact stem-to-seat concentricity for reliable performance

Manley Performance has manufactured premium stainless steel valves for over four decades, establishing the industry standard for quality and performance. This valve is engineered to deliver superior flow and reliability in applications ranging from aggressive street builds to professional racing engines producing over 1000 horsepower. Each valve undergoes rigorous quality control to ensure it meets Manley's exacting standards for precision and durability.

Products specifications

Fits

2007-2008 GMC Yukon XL 1500; 2007-2008 GMC Sierra; 2007-2008 GMC Yukon XL Denali; 2008 Hummer H2; 2007-2008 Cadillac Escalade; 2007-2008 Cadillac Escalade ESV; 2007-2008 Cadillac Escalade EXT

Approximate Weight (g)

117

Lock Groove Quantity

1-groove

Lock Groove Style

Conventional

Overall Valve Length (in)

4.900 in.

Overall Valve Length (mm)

124.460mm

Quantity

Sold as a set of 8.

Swirl-Polished

Yes

Undercut Stem

Yes

Valve Head Diameter (in)

2.165 in.

Valve Head Diameter (mm)

54.991mm

Valve Head Style

7 degree dish

Valve Material

NK-842 stainless steel

Valve Seat Width (in)

0.100 in.

Valve Stem Diameter (in)

0.313 in.

Valve Stem Diameter (mm)

7.960mm

Valve Tip Length (in)

0.160 in.

Valve Tip Length (mm)

4.064mm

completely satisfied

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order received within time that was expected and as described.

So far, so good. Prices are good, service is good. No complaints. Will continue to use.

simply and fast

Good products

Lowest price anywhere! Amazing service and fast shipping!

Your website is very nice, straight forward and the checkout process was easy. Thanks!

Great item, As described, Expertly packed & Shipped FAST! Superb seller!!

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The order number 15547 tailgate lock fit perfectly. The shipping was very fast, ordered on Tuesday, delivered on Saturday. Will order from again.

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