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Manley 11827-8 - SBC 1.600 Severe Duty Intake Valves (Set of 8)

Manley  |  SKU: BBPB-11827-8
Sale price $30107 Regular price $40142


AVAILABILITY: This Item Is Out Of Stock.


PLEASE NOTE: Pictures may be representative of style, rather than the actual product. Read the description for more details.

Description

Manley 11827-8 - SBC 1.600 Severe Duty Intake Valves (Set of 8)

Exhaust Valve - Severe Duty - 1.600 in Head - 0.342 in Valve Stem - 4.936 in Long - Stainless - Small Block Chevy - Set of 8

Discontinued - Manley Valve - Exhaust, Valve-SBC P/F 1.600

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: 1.600
Valve Head Diameter: 1.600
Stem Diameter: 0.3415
Valve Stem Diameter: 0.3415
O/A Length: 4.936
Valve Length: 4.936
Valve Tip Length: 0.250
Tip Length: 0.250
Margin Width: 0.085
Seat Width: 0.080
Top of Head: 7 Degree Dish
Valve Head Shape: 7 Degree Dish
Underhead Angle: Pro Flo: 12.00
Underhead Radius: 3/8
Valve Series: Severe Duty? Series
Valve Sub-Series: Pro Flo
Valve Material: Stainless Steel
Valve Type: Exhaust
Product Type: Engine Exhaust Valve Kit
Valve Quantity: 8
Engine Valve Quantity: 8
Engine Type: ICE
Make: Chevrolet
Engine: Small Block

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