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Manley 11300-8 Race Master Stainless Steel Intake Valves

(2002-2008 Dodge Ram)

Manufacturer

Picture for manufacturer Manley

Part Number

11300-8
8 reviews
Sale Price

$188.69

Estimated ship date Friday, November 20

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Live-in-stock inventory

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Fitment guaranteed

Fitment guaranteed

Product Details

Machined from NK-842 stainless steel with a hard-chrome coated stem and hardened valve tip, these valves deliver the durability and precision required in demanding race applications.

Each valve features Manley's signature Pro Flo underhead geometry — a 12° x 3/8" undercut radius — combined with a swirl-polished finish and fully machined undercut stem profile for improved airflow and reduced valve weight. The 7° dish top-of-head design and tight tolerances on margin and seat width ensure consistent sealing and optimal combustion chamber efficiency.

Key Specifications:

  • Valve Type: Intake
  • Material: NK-842 Stainless Steel
  • Head Diameter: 1.940 in.
  • Stem Diameter: 0.3415 in. (11/32")
  • Overall Length: 5.040 in. (+0.100" longer than stock)
  • Tip Length: 0.250 in.
  • Underhead Angle/Radius: Pro Flo 12° x 3/8 in.
  • Margin: 0.050 in.
  • Seat Width: 0.080 in.
  • Top of Head: 7° Dish
  • Stem Finish: Hard Chrome Coated
  • Weight: 109 grams per valve

Manley Race Master valves are targeted at engine builders running below 8,000 RPM and represent a step up from standard EV-8 (21-4N) alloy valves in terms of fatigue strength and overall quality. Always measure existing valve head and stem diameter before ordering to confirm fitment.

Products specifications

Fits

2002-2008 Dodge Ram

Approximate Weight (g)

111

Lock Groove Quantity

1-groove

Lock Groove Style

Conventional

Overall Valve Length (in)

5.040 in.

Overall Valve Length (mm)

128.0mm

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-842 stainless steel

Valve Seat Width (in)

0.080 in.

Valve Stem Diameter (in)

0.342 in.

Valve Stem Diameter (mm)

8.7mm

Valve Tip Length (in)

0.290 in.

Valve Tip Length (mm)

7.37mm

Quick and simple

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.

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