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

Manley 11144-12 Race Series Stainless Steel Intake Valves - Set of 12

Manufacturer

Part Number

11144-12
Sale Price

$497.74

In Stock (8)

delivery box

Usually delivered within 2 days

free shipping

FREE SHIPPING

Authorize Seller Badge
No Hassle Returns

No Hassle Returns

Live-in-stock inventory

Live-in-stock inventory

Fitment guaranteed

Fitment guaranteed

Product Details

Manley Performance Race Series stainless steel intake valves deliver exceptional durability and performance for high-output engines. Each valve is precision-manufactured to exacting standards using Manley's proprietary Race Series alloy, engineered to outflow and outperform in even the most demanding conditions.

Key Features:

  • Pro-Flo design with reduced stem diameter in fillet area for increased airflow and reduced valve weight
  • Chrome-finished stems for superior durability and wear resistance
  • Swirl polished under heads for optimal flow characteristics
  • Fully hardened valve tips for extended service life
  • Completely machined combustion faces for precise sealing
  • Closely controlled margin heights and exact stem-to-seat concentricity
  • Premium stainless steel construction for corrosion resistance

This set includes 12 intake valves suitable for a wide range of applications, from street performance builds to extreme race engines producing 1000+ horsepower. Manley's Race Series valves are proven in drag racing, drifting, and other high-performance motorsports where reliability and maximum flow are critical.

Products specifications

Head Diameter

39.7mm

Margin

0.045

O/A Length

100.21mm

Seat Width

.100"

Stem Diameter

6.96mm/.2740"

Tip Length

3.56mm

Top of Head

Flat Face

Underhead Angle/Radius

Pro Flo, 12° x 3/8"

Great price and fast shipping, very satisfied!

Best price for the item I needed. Very fast shipping and there consumer service was great on the phone.

Very competive prices, even with shipping costs. Looking forward to using Autoplicity again in the near future.

Autoplicity had the air filter I needed in stock when NO ONE else did. They responded quickly and got my order shipped. The only downside was that the shipping cost (regular shipping) was quite high compared to things I have ordered from other places. Still, total cost was comparable to what I would have paid if I purchased it locally.

Transaction has been smooth so far. Pricing is great compared to other online retailers.

Super group to deal with! Great prices, fast shipping and excellent communication! Who could ask for more! <br><br>Thank you,<br>Jody C.

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