MANLEY 11591-1 Exhaust Valve Race Series (1.880" Head Dia., 5.655" O/A Length, 0.3415" Stem) for FORD 429

Description MANLEY 11591-1 Exhaust Valve Race Series (1.880\" Head Dia., 5.655\" O/A Length, 0.3415\" Stem) for FORD 429

Manley’s Race Series valves are engineered to meet the demands of bracket, drag, and oval track racers and are intended for engines operating under 8,000 RPM.

• Both exhaust (XH-426) and Intake (NK-842) valves are constructed from high-quality Stainless steel.
• Chrome stems and hard tips provide enhanced longevity and wear resistance.
• Swirl-polished underhead areas and fully machined combustion faces optimize Airflow and combustion efficiency.
• Available in Race Master straight-stem and Race Flo shapes.

Recommended for Alcohol Engines: These valves are recommended for exhaust valves in alcohol engines, ensuring reliable performance in Demanding conditions.

Specifications:

• Product Market: Domestic
• Head Diameter: 1.880 IN
• Stem Diameter: 0.3415 IN
• Valve Stem Diameter: 0.3415 IN
• O/A Length: 5.655 IN
• Tip Length: 0.260 IN
• Margin Width: 0.075 IN
• Seat Width: 0.100 IN
• Top of Head: 20 Degree Dish
• Underhead Angle: 25.00 DEG
• Emissions Code: 3
• Cylinder Head: Aluminum Aftermarket Cylinder Head
• Valve Series: Race Series
• Valve Sub-Series: Race Master
• Valve Material: Stainless Steel
• Valve Type: Exhaust
• Product Type: Engine Exhaust Valve
• Valve Quantity: 1