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Manley / 11754-1

Part #: 11754-1
UPC: 807298052052

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Brand: Manley Series: Severe Duty Valves

Description: Manley Valve - Intake, Valve-S/D 2.125,+300

Description:

Description

Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake), offering unmatched tensile strength compared to competitive alloys. In fatigue testing at 40,000 psi and 1400°F, Manley exhaust valves endured 100 million cycles, while competitors failed after just 100,000, proving a 1,000× longer fatigue life. Each valve features chrome stems, hard tips, and swirl-polished underheads with fully machined combustion faces for superior airflow, efficiency, and wear resistance. Built for those who demand race-winning strength and precision, Manley Severe Duty® Valves set the industry standard for performance and endurance.

Features & benefits

  • Proven fatigue strength for extreme performance
  • Chrome stems and hard tips enhance durability
  • Exotic alloys for superior tensile strength, reliability, and longevity
  • Swirl polishing and machined faces improved airflow/optimized efficiency

Information

Manley Valve - Intake, Valve-S/D 2.125,+.300.

Specifications

GTIN
00807298052052
Weight
0.5 lb
Height
2.5 in
Length
7 in
Width
2.5 in
EO
Offroad
Life cycle
Available to Order
Warehouse brand code
BBPB
AAIA brand code
BBPB

Attributes

California Proposition 65
WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov
Category Hierarchy
Valves>Stainless Steel>Severe Duty
EBAY Category ID
33621
Engine
Small Block
Engine - Web
Small Block
Engine Detail - Web
Small Block
Engine Family
Small Block
Engine Type
ICE
Engine Valve Quantity
1
Head Diameter
2.125
Industry
Automotive
Make
Chevrolet
Make - Web
Chevrolet
Margin Width
0.065
O/A Length
5.240
Out of Stock Message
Call for Availability
Product Market
Domestic
Product Type
Engine Intake Valve
Seat Width
0.080
Stem Diameter
0.3415
Tip Length
0.290
Title
Manley Valve - Intake, Valve-S/D 2.125,+.300
Title - Web
Manley Severe Duty? Series Chevrolet Small Block Intake Valve - 2.125 in. Head Dia., 5.240 in. O/A Length, 0.3415 in. Stem
Top of Head
7 Degree Dish
Type
Intake
Underhead Angle
12.00
Underhead Radius
3/8
Valve Head Diameter
2.125
Valve Head Shape
7 Degree Dish
Valve Length
5.240
Valve Material
Stainless Steel
Valve Quantity
1
Valve Series
Severe Duty? Series
Valve Stem Diameter
0.3415
Valve Tip Length
0.290
Valve Type
Intake

Fitment status

This product is universal and will fit your application.

Resources

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