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 Severe Duty Pro Flo Intake Valves Big Block Chevy

(2013-2019 Ford Taurus)

Manufacturer

Picture for manufacturer Manley

Part Number

2 part numbers · from $311.48
5 reviews
Sale Price

from $311.48

In Stock (7)

delivery box

Usually delivered within 2 days

free shipping

FREE SHIPPING

Select Your Vehicle:

Authorize Seller Badge
No Hassle Returns

No Hassle Returns

Live-in-stock inventory

Live-in-stock inventory

Fitment guaranteed

Fitment guaranteed

Product Details

Manley Severe Duty Pro Flo intake valves for Big Block Chevy engines are stainless steel performance valves. They are also sold as engine valves or poppet valves, and they are built for high-performance and racing gasoline engines that run at high temperatures. The Severe Duty line is one of Manley's signature valve series in the performance and racing market.

Key Features:

  • NK-844 intake valve material: Manley says this alloy keeps much more tensile strength at 1000°F than the best competing intake materials, and that it gives far better fatigue life.
  • Pro Flo undercut stem design: The Pro Flo shape is intended to improve airflow past the valve.
  • Chrome stems and hard tips: These resist wear in the guide and at the keeper and rocker contact area.
  • Swirl-polished and fully machined: The finish and machining support airflow, efficiency and consistent seating.
  • Made in the USA: Manley builds these valves for demanding engine applications.

These valves hold up under valve float and the high stresses of race use. Whether you are building a street/strip engine or a full race engine, Severe Duty Pro Flo intake valves give you a durable, high-flow option for a Big Block Chevy cylinder head.

Products specifications

Fits

2013-2019 Ford Taurus

Select yours to see vehicle-specific options.

Select & Customize

2 items

Picture of Manley 11536-8 Severe Duty Pro Flo Intake Valves Big Block Chevy - 2.300
Manley 11536-8 Severe Duty Pro Flo Intake Valves Big Block Chevy - 2.300
Description
Specifications
Approximate Weight (g)168
EngineBig Block
Engine TypeICE
Engine Valve Quantity8
Head Diameter2.300
Lock Groove Quantity1-groove
Lock Groove StyleConventional
MakeChevrolet
Margin Width0.065
O/A Length5.433
Overall Valve Length (in)5.433 in.
Overall Valve Length (mm)137.998mm
Product TypeEngine Intake Valve Kit
QuantitySold as a set of 8.
Seat Width0.080
Stem Diameter0.3720
Swirl-PolishedYes
Tip Length0.220
TitleManley Valve - Intake, Valve-S/D 2.300,+.200
Top of Head7 Degree Dish
Undercut StemNo
Underhead AnglePro Flo: 12.00
Underhead Radius7/16
Valve Head Diameter2.300
Valve Head Diameter (in)2.300 in.
Valve Head Diameter (mm)58.420mm
Valve Head Shape7 Degree Dish
Valve Head Style7 degree dish
Valve Length5.433
Valve MaterialNK-844 stainless steel
Valve Quantity8
Valve Seat Width (in)0.080 in.
Valve SeriesSevere Duty? Series
Valve Stem Diameter0.3720
Valve Stem Diameter (in)0.372 in.
Valve Stem Diameter (mm)9.449mm
Valve Tip Length0.220
Valve Tip Length (in)0.220 in.
Valve Tip Length (mm)5.588mm
Valve TypeIntake
$311.48
PART NUMBER: 11536-8
4 left at this price
Usually delivered within 2 days
Picture of Manley 11836-8 Severe Duty Pro Flo Intake Valves Big Block Chevy - 2.065 Set of 8 Picture of Manley 11836-8 Severe Duty Pro Flo Intake Valves Big Block Chevy - 2.065 Set of 8 Picture of Manley 11836-8 Severe Duty Pro Flo Intake Valves Big Block Chevy - 2.065 Set of 8
Manley 11836-8 Severe Duty Pro Flo Intake Valves Big Block Chevy - 2.065 Set of 8
Description
Specifications
Approximate Weight (g)131
EngineBig Block
Engine TypeICE
Engine Valve Quantity8
Head Diameter2.065
Lock Groove Quantity1-groove
Lock Groove StyleConventional
MakeChevrolet
Margin Width0.050
O/A Length5.218
Overall Valve Length (in)5.218 in.
Overall Valve Length (mm)132.537mm
Product TypeEngine Intake Valve Kit
QuantitySold as a set of 8.
Seat Width0.080
Stem Diameter0.3720
Swirl-PolishedYes
Tip Length0.250
TitleManley Valve - Intake, Valve-BBC P/F 2.065
Top of Head5 Degree Dish
Undercut StemNo
Underhead AnglePro Flo: 10.00
Underhead Radius3/8
Valve Head Diameter2.065
Valve Head Diameter (in)2.065 in.
Valve Head Diameter (mm)52.451mm
Valve Head Shape5 Degree Dish
Valve Head Style5 degree dish
Valve Length5.218
Valve MaterialNK-844 stainless steel
Valve Quantity8
Valve Seat Width (in)0.080 in.
Valve SeriesSevere Duty? Series
Valve Stem Diameter0.3720
Valve Stem Diameter (in)0.372 in.
Valve Stem Diameter (mm)9.449mm
Valve Sub-SeriesPro Flo
Valve Tip Length0.250
Valve Tip Length (in)0.220 in.
Valve Tip Length (mm)5.588mm
Valve TypeIntake
$396.33
PART NUMBER: 11836-8
3 left at this price
Usually delivered within 2 days

Select & Customize

Easy to find items. Let's me know which part is available and if it fits my car. So much more affordable than other websites.

had what i needed

Pretty Easy so far

Easy ordering and prompt delivery

Easy to navigate website

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