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

Manley 11365-8 Stainless Steel Performance Intake Valve Head - 1.600

(1998-2002 Chevrolet Camaro; 1997-2004 Chevrolet Corvette; 2004 Pontiac GTO; 1998-2002 Pontiac Firebird; 2004-2005 Cadillac CTS; 2003-2008 Nissan 350Z)

Manufacturer

Part Number

11365-8
Sale Price

$188.69

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 11365-8 is a high-performance stainless steel intake valve engineered for demanding automotive applications. Featuring a 1.600" head diameter and .3136" stem diameter, this valve is precision-manufactured from Manley's exceptional Race Series stainless steel alloy to deliver superior flow and durability.

Key Specifications:

  • Head Diameter: 1.600"
  • Stem Diameter: .3136"
  • Overall Length: 4.923"
  • Tip Length: .175"
  • Underhead Angle/Radius: 25 x 7/16"
  • Margin: .065"
  • Seat Width: .115"
  • Top of Head: 18° Dish
  • Weight: 91 grams

Premium Features:

  • Chrome-plated stem for reduced friction and extended guide life
  • Swirl-polished underhead for optimized airflow
  • Fully hardened tip for durability with aggressive valvetrain systems
  • Completely machined combustion face for precise sealing
  • Pro-Flo design with reduced stem diameter in fillet area for increased flow and reduced weight
  • Exact stem-to-seat concentricity for consistent performance

Backed by over 40 years of valve manufacturing expertise, Manley Performance valves are trusted by engine builders worldwide. This valve is suitable for applications ranging from high-performance street engines to professional race builds exceeding 1000+ horsepower. The Race Series stainless steel alloy provides exceptional strength and wear resistance even in severe operating conditions.

Products specifications

Fits

1998-2002 Chevrolet Camaro; 1997-2004 Chevrolet Corvette; 2004 Pontiac GTO; 1998-2002 Pontiac Firebird; 2004-2005 Cadillac CTS; 2003-2008 Nissan 350Z

Approximate Weight (g)

91

Lock Groove Quantity

1-groove

Lock Groove Style

Conventional

Overall Valve Length (in)

4.923 in.

Overall Valve Length (mm)

125.044mm

Quantity

Sold as a set of 8.

Swirl-Polished

Yes

Undercut Stem

Yes

Valve Head Diameter (in)

1.600 in.

Valve Head Diameter (mm)

40.640mm

Valve Head Style

18 degree dish

Valve Material

XH-426 stainless steel

Valve Seat Width (in)

0.115 in.

Valve Stem Diameter (in)

0.314 in.

Valve Stem Diameter (mm)

7.976mm

Valve Tip Length (in)

0.175 in.

Valve Tip Length (mm)

4.445mm

Quick and easy.

Website was very easy to navigate.

Excellent service and communication.

I got the items exactly as described with VERY fast shipping. i highly recommend them to everyone. And I will definitely be shopping there again!

Great prices, clear information and fast shipping!

Great price. Very happy with order. Will buy from them again.

Thanks for the great price

Super fast shipping, exactly as ordered, no drama, problems or complications

Although there was a mix up with the shipping on my order customer service was helpful and expedited the solution and made it worth my trouble. I will be keeping Autoplicity in mind for any other parts I might need for my Jeep.

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