My Account
My Garage
Shopping Cart

Shopping Cart

0 items in your Cart
View Cart
Subtotal
Track
My Order
MY GARAGE Select Vehicle
MY GARAGE

Manley 11872-8 Race Series Intake Valve Ford 351C 2.190" 11/32" Stem

(2021-2025 Acura TLX)

Manufacturer

Picture for manufacturer Manley

Part Number

11872-8
11 reviews
Sale Price

$188.69

Estimated ship date Wednesday, November 18

Check out with

ApplePay
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 11872-8 is a high-performance intake valve designed specifically for Ford 351 Cleveland 4-barrel cylinder heads. Engineered for bracket racing, oval track, and high-performance street applications, this race series valve delivers the durability and precision needed for demanding engine builds.

Construction and Materials:

  • Manufactured from premium NK-842 stainless steel for superior strength and heat resistance
  • Chrome-plated stem reduces friction and wear
  • Hardened valve tip extends service life in high-lift applications
  • Swirl-polished finish for smooth airflow
  • Fully machined with straight stem design

Specifications:

  • Valve type: Intake
  • Head diameter: 2.190 inches
  • Stem diameter: 0.3415 inches (11/32")
  • Overall length: 5.244 inches
  • Installed height: Stock
  • Tip length: 0.250 inches
  • Underhead angle/radius: 12 degrees x 3/8 inch
  • Margin: 0.050 inches
  • Seat width: 0.080 inches
  • Top of head: 7 degree dish
  • Weight: 139 grams per valve

Application: Ford 351 Cleveland 4-barrel cylinder heads only. Always measure your existing valve head and stem diameter before ordering to ensure proper fitment.

Products specifications

Fits

2021-2025 Acura TLX

Approximate Weight (g)

139

Lock Groove Quantity

1-groove

Lock Groove Style

Conventional

Overall Valve Length (in)

5.244 in.

Overall Valve Length (mm)

133.198mm

Quantity

Sold as a set of 8.

Swirl Polished

Yes

Undercut Stem

No

Valve Head Diameter (in)

2.190 in.

Valve Head Diameter (mm)

55.626mm

Valve Head Style

7 degree dish

Valve Material

NK-842 stainless steel

Valve Seat Width (in)

0.080 in.

Valve Stem Diameter (in)

0.341 in.

Valve Stem Diameter (mm)

8.661mm

Valve Tip Length (in)

0.250 in.

Valve Tip Length (mm)

6.350mm

Easy to find parts. Great price for what I want. I'm paying half the price compare to the local autopart store

I've only clicked the place order button so far.

GOOD PRICES EASY PICKINS

Fast shipping, great price on exhaust parts.

Great service!!

Great part, great prices!!!

Good fast shipping. Easy ordering.

Great prices and delivery as stated.

A+++++

Fantastic ! Ordered a Weather Tech Cargo Liner for my 2012 Ford Explorer. Price was $60 less here than ALL other sites on web. I was skeptical that this was going to be a counterfeit -- as the price was too good to be true. I was extremely happy to receive the genuine product as I expected in less than a week -- and for $60 less than the competitors ! GREAT VALUE and great service ! I will definitely be back !!

Wow Super fast shipping, right product, no hassle no fuss. just how i like it. good job autoplicity keep it up.

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