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Manley 11388-8 Race Series Stainless Steel Intake Valve Head Stem - 2.000 11/32

Manufacturer

Picture for manufacturer Manley

Part Number

11388-8
7 reviews
Sale Price

$188.69

2 left at this price

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Usually delivered within 2 days

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Live-in-stock inventory

Live-in-stock inventory

Fitment guaranteed

Fitment guaranteed

Product Details

The Manley 11388-8 is a high-performance race series intake valve engineered for bracket racing, oval track, and high-performance street applications. Constructed from premium NK-842 stainless steel, this valve features a chrome-plated stem and hardened tip for exceptional durability and wear resistance.

Key Specifications:

  • Valve Type: Intake
  • Head Diameter: 2.000 inches
  • Stem Diameter: .3415 inches (11/32)
  • Overall Length: 4.900 inches
  • Tip Length: .250 inches
  • Installed Height: Stock
  • Underhead Angle/Radius: 12 degrees x 3/8 inch (Pro Flo)
  • Margin: .050 inches
  • Seat Width: .080 inches
  • Top of Head: 7 degree dish
  • Weight: 109 grams

Performance Features:

  • NK-842 stainless steel construction for superior strength and heat resistance
  • Swirl polished finish for reduced friction and improved flow
  • Fully machined with undercut stem design to maximize airflow
  • Chrome stem plating for enhanced wear resistance
  • Hardened valve tip extends service life

This valve is ideal for engines requiring reliable performance under demanding racing conditions. Always measure your existing valve head and stem diameter before ordering to ensure proper fitment.

Products specifications

Approximate Weight (g)

134

Lock Groove Quantity

1-groove

Lock Groove Style

Conventional

Overall Valve Length (in)

5.000 in.

Overall Valve Length (mm)

127.0mm

Quantity

Sold as a set of 8.

Swirl Polished

Yes

Undercut Stem

No

Valve Head Diameter (in)

2.180 in.

Valve Head Diameter (mm)

55.8mm

Valve Head Style

7 degree dish

Valve Material

NK-842 stainless steel

Valve Seat Width (in)

0.080 in.

Valve Stem Diameter (in)

0.372 in.

Valve Stem Diameter (mm)

9.5mm

Valve Tip Length (in)

0.275 in.

Valve Tip Length (mm)

6.99mm

Best prices, fast shipping, good service. Thank you!

Great prices and shipped promptly.

quick and easy found exactly what i was looking for

BEST PRICE AROUND, HANDS DOWN. Shipping was fast and communication was impeccable. THANKS FOR THE PROFESSIONALISM.

best prices around by far for the exact same product! Would definetely recomend autoplicity to a friend

the product was the cheapest price i could find on the web and shipping was quick i got the part in two days from purchase

Wonderful experience with seller. Ordered on a Monday night and received on Thursday. Talking about service. Man these guys are awesome. I will be ordering more in the future with Autoplicity. Thanks again!

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