Manley / 11871-8
Part #: 11871-8
UPC: 807298054452
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Description: Manley Valve - Exhaust, Valve-S/D 1.625,+200
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 - Exhaust, Valve-S/D 1.625,+.200.
Specifications
- GTIN
- 00807298054452
- Weight
- 4 lb
- Height
- 2.5 in
- Length
- 11.75 in
- Width
- 6.75 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
- Engine
- Small Block
- Engine - Web
- Small Block
- Engine Detail - Web
- Small Block
- Engine Family
- Small Block
- Engine Type
- ICE
- Engine Valve Quantity
- 8
- Head Diameter
- 1.625
- Industry
- Automotive
- Make
- Chevrolet
- Make - Web
- Chevrolet
- Margin Width
- 0.070
- O/A Length
- 5.121
- Out of Stock Message
- Call for Availability
- Product Market
- Domestic
- Product Type
- Engine Exhaust Valve Kit
- Seat Width
- 0.100
- Stem Diameter
- 0.3415
- Tip Length
- 0.250
- Title
- Manley Valve - Exhaust, Valve-S/D 1.625,+.200
- Title - Web
- Manley Severe Duty? Series Chevrolet Small Block Exhaust Valve Kit - 1.625 in. Head Dia., 5.121 in. O/A Length, 0.3415 in. Stem
- Top of Head
- 9 Degree Dish
- Type
- Exhaust
- Underhead Angle
- 15.00
- Underhead Radius
- 1/2
- Valve Head Diameter
- 1.625
- Valve Head Shape
- 9 Degree Dish
- Valve Length
- 5.121
- Valve Material
- Stainless Steel
- Valve Quantity
- 8
- Valve Series
- Severe Duty? Series
- Valve Stem Diameter
- 0.3415
- Valve Tip Length
- 0.250
- Valve Type
- Exhaust
Fitment status
This product is universal and will fit your application.
Resources
Manley 11871-8
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