Ferrea F1489P Competition Plus Super Alloy Exhaust Valve 29mm 1mm Oversized

The Ferrea F1489P is a Competition Plus series super alloy exhaust valve engineered for extreme-duty racing applications. This valve features a 29mm head diameter with 1mm oversized configuration and a 30-degree Flo Dish head design optimized for superior flow characteristics and performance.

Specifications:

• Head Diameter: 29mm (1.14 inches) - 1mm oversized
• Stem Diameter: 6.54mm (0.257 inches)
• Overall Length: 106.02mm (4.17 inches)
• Tip Length: 4.1mm
• Head Design: 30° Flo Dish Head
• Material: Ultra High Strength, High Temp Nickel Stainless Steel Super Alloy (EV8-Z18)
• Type: Exhaust (E)

Advanced Manufacturing Process:

• Manufactured using aerospace-quality EV8-Z18 alloy for exceptional high-temperature strength
• Exclusive two-step slow forging process ensures proper grain flow and eliminates material structural damage
• 48-hour heat treatment and stress relief cycle for molecular integrity
• Avionics-quality hard chrome coating with specially applied hard tip
• Swirl polished head for optimal flow and reduced turbulence

Performance Benefits:

• Engineered to withstand extreme exhaust gas temperatures from forced induction applications
• Superior tensile strength and heat resistance compared to conventional Inconel materials
• Designed for high RPM operation with high valve spring pressures
• Ideal for turbocharged, supercharged, and nitrous oxide applications
• Smooth radiuses and unique undercuts maximize flow, velocity, and efficiency

The Ferrea Competition Plus series has earned a reputation as the industry's most reliable extreme-duty valve for professional racing and high-performance street applications. The 1mm oversized configuration allows for valve seat machining and increased flow capacity in performance cylinder head builds.