Manley VALVE-FD 4V R/M 38mm Bead Valve Lock (Single) - 11618B-1

Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM

Features

• Recommended for Alcohol Engines: These valves are the recommended choice for exhaust valves in alcohol engines, ensuring reliable performance even in demanding conditions.
• Variety of Shapes: Choose between Race Master (Straight Stem) and Race Flo shapes to suit your racing engine's specific requirements.
• Swirl Polished and Fully Machined: The valves feature swirl polished under head areas and fully machined combustion faces to optimize airflow and combustion efficiency.
• Chrome Stems and Hard Tips: Chrome stems and hard tips are incorporated for enhanced longevity and wear resistance.
• Stainless Steel Construction: Both exhaust (XH-426) and intake (NK-842) valves are constructed from high-quality stainless steel for unparalleled durability.

Specs

• Manley Valve
• Intake, Valve-FD MOD R/M 38mm
• Engine Type: ICE
• Make: Ford
• Engine: 4.6L Modular
• Product Market: Domestic
• Head Diameter: 38.00
• Valve Head Diameter: 38.00
• Stem Diameter: 0.2750
• Valve Stem Diameter: 0.2750
• O/A Length: 5.339
• Valve Length: 5.339
• Valve Tip Length: 0.635
• Tip Length: 0.635
• Margin Width: 0.045
• Seat Width: 0.080
• Top of Head: 5 Degree Dish
• Valve Head Shape: 5 Degree Dish
• Underhead Angle: 10.00
• Underhead Radius: 3/8
• Valve Series: Race Series
• Valve Sub-Series: Race Master
• Valve Material: Stainless Steel
• Valve Groove Type: Bead Loc?
• Valve Type: Intake