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Manley 11804-8 - Ford 427 (Medium/Hi Riser/Tunnel Port) 2.250 Dia Dish Severe Duty Intake Valves (Set of 8)

Manley  |  SKU: BBPB-11804-8
Sale price $34899 Regular price $45450

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Description

Manley 11804-8 - Ford 427 (Medium/Hi Riser/Tunnel Port) 2.250 Dia Dish Severe Duty Intake Valves (Set of 8)

Intake Valve - Severe Duty - 2.250 in Head - 0.372 in Valve Stem - 5.454 in Long - Stainless - Ford FE-Series - Set of 8

Manley Valve - Intake, Valve-FD 427 S/D 2.250

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
Head Diameter: 2.250
Valve Head Diameter: 2.250
Stem Diameter: 0.3715
Valve Stem Diameter: 0.3715
O/A Length: 5.454
Valve Length: 5.454
Valve Tip Length: 0.320
Tip Length: 0.320
Margin Width: 0.060
Seat Width: 0.100
Top of Head: 20 Degree Dish
Valve Head Shape: 20 Degree Dish
Underhead Angle: 23.00
Underhead Radius: 5/16
Valve Series: Severe Duty? Series
Valve Material: Stainless Steel
Engine Valve Quantity: 8
Engine Type: ICE
Make: Ford
Engine: 427
Valve Quantity: 8
Product Type: Engine Intake Valve Kit
Valve Type: Intake

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