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 11778-8 Race Flo Intake Valve 2.125in Head 0.3415in Stem +0.300 Longer

(2011-2014 Dodge Charger)

Manufacturer

Picture for manufacturer Manley

Part Number

11778-8
6 reviews
Sale Price

$188.69

2 left at this price

delivery box

Usually delivered within 2 days

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 11778-8 is a Race Flo stainless steel intake valve featuring a 2.125-inch head diameter and a +0.300-inch longer-than-stock overall length of 5.240 inches. Designed for bracket, drag, and oval track racing applications, this valve is engineered to perform reliably in engines operating under 8,000 RPM.

Key Specifications:

  • Valve Type: Intake
  • Head Diameter: 2.125 in
  • Stem Diameter: 0.3415 in (11/32")
  • Overall Length: 5.240 in (+0.300 longer than stock)
  • Tip Length: 0.290 in
  • Seat Angle / Radius: Pro Flo – 12° x 3/8"
  • Margin: 0.050 in
  • Seat Width: 0.080 in
  • Head Shape: 7° Dish
  • Weight: 121 grams

Key Features:

  • NK-842 Stainless Steel Construction: Premium stainless intake material delivers exceptional durability and corrosion resistance
  • Chrome Stems and Hard Tips: Enhance longevity and wear resistance under high-cycle conditions
  • Swirl Polished Underhead: Optimizes airflow through the intake port for improved combustion efficiency
  • Fully Machined Combustion Face: Precise machining ensures consistent seating and sealing performance
  • Race Flo Pro Flo Stem Profile: Undercut stem design promotes significant flow gains without requiring head porting

The Manley 11778-8 Race Flo intake valves are an excellent upgrade for performance and race engines requiring a longer-than-stock valve with a large 2.125-inch head diameter.

Products specifications

Fits

2011-2014 Dodge Charger

Finding part and ordering was fast and easy. Great mobile phone interface.

It was easy to find the product I needed and to order it.

Easy to find, verify fit, great price on an obscure item.

Great pricing and customer service. Item shipped on time and with no complicaitons. Best pricing on the internet that I could find. Great seller.

Great service, best price available online and realistic shipping costs, Ordered 5PM Friday, shipped Monday , received Tuesday end of day. Beats driving to the local store. Highly recommended !!<br><br>RS Larchmont NY

The sales/service team were very helpful and they had the cheapest price for an air filter that I could find. I will definitely shop here again!

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