Ferrea F1488P Competition Plus Exhaust Valve 28.5mm 0.5mm Oversize Honda B18A B18B B20

The Ferrea F1488P is a Competition Plus Super Alloy exhaust valve designed for Honda B18A1, B18B1, and B20 engine applications. This valve features a 28.5mm head diameter with a 0.5mm oversize specification, making it ideal for performance builds requiring slightly larger exhaust flow capacity.

Technical Specifications:

• Head Diameter: 28.5mm (0.5mm oversize)
• Stem Diameter: 6.54mm
• Overall Length: 106.02mm
• Tip Length: 4.1mm
• Head Design: 30° Flo Dish Head
• Material: Super Alloy (EV8-Z18 aerospace quality alloy)

Construction and Features:

• Manufactured using special aerospace quality EV8-Z18 alloy for high tensile strength
• Exclusive two-step slow forging process ensures proper grain flow and eliminates material damage
• 48-hour heat-treatment and stress-relief process for molecular integrity
• Avionics-quality hard chrome stem coating
• Specially applied hard tip for extended durability
• Swirl polished head for optimal flow characteristics

Ferrea Competition Plus Valves are engineered for extreme duty applications and are suitable for all horsepower levels, especially engines experiencing extreme exhaust temperatures from forced induction such as turbochargers, superchargers, or nitrous oxide systems. These valves can withstand high RPM and high spring pressures while maintaining reliability in the most demanding racing environments.

Application: Compatible with Honda/Acura B18A1, B18B1, and B20B/B20Z non-VTEC engines, including Acura Integra LS/GS/RS (1990-2001) and Honda CR-V (1997-2001) models.