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Manley 11544-8 - SBC 2.020 Severe Duty Intake Valves (Set of 8)

Manley  |  SKU: BBPB-11544-8
Sale price $31148 Regular price $41530

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Description

Manley 11544-8 - SBC 2.020 Severe Duty Intake Valves (Set of 8)

Intake Valve - Severe Duty - 2.020 in Head - 0.342 in Valve Stem - 5.140 in Long - Stainless - Small Block Chevy / Ford - Set of 8

Manley Valve - Intake, Valve-S/D 2.020,+200

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.

  • 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
Engine: Small Block
Head Diameter: 2.020
Valve Stem Diameter: 0.3415
O/A Length: 5.140
Stem Diameter: 0.3415
Valve Head Diameter: 2.020
Margin Width: 0.065
Seat Width: 0.080
Top of Head: 5 Degree Dish
Valve Length: 5.140
Valve Tip Length: 0.290
Tip Length: 0.290
Valve Head Shape: 5 Degree Dish
Underhead Angle: 10.00
Underhead Radius: 3/8
Valve Series: Severe Duty? Series
Valve Material: Stainless Steel
Valve Type: Intake
Product Type: Engine Intake Valve Kit
Valve Quantity: 8
Engine Valve Quantity: 8
Engine Type: ICE
Make: Chevrolet

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