Manley 11238-8 Severe Duty Intake Valve NK-844 Stainless Steel 2.020in Head

The Manley 11238-8 Severe Duty Series Intake Valve is engineered for high-performance and racing applications that demand superior reliability and durability. Constructed from NK-844 stainless steel with a chrome-plated stem and hardened tip, each valve is swirl polished and fully machined to exacting tolerances.

Key Specifications:

• Valve Type: Intake
• Head Diameter: 2.020 in.
• Stem Diameter: 0.3415 in. (11/32)
• Overall Length: 5.015 in.
• Installed Height: 0.100 in. longer than stock
• Tip Length: 0.250 in.
• Underhead Angle/Radius: 10 degrees x 3/8 in.
• Margin: 0.070 in.
• Seat Width: 0.080 in.
• Top of Head: 7-degree dish
• Weight: 113 grams (0.249 lbs)

Key Features:

• NK-844 stainless steel construction for exceptional heat and wear resistance
• Chrome-plated stem for reduced friction and extended service life
• Hardened valve tip for improved durability under high-RPM conditions
• Swirl polished and fully machined for precise fitment and superior flow
• Straight stem design for increased durability and stability

Manley's Severe Duty Series valves are a trusted choice among engine builders looking for race-proven performance components. The combination of premium materials, precise machining, and hardened tips makes these intake valves well suited for demanding high-performance and competition engine builds.