Ferrea Competition Plus Valves have built a reputation as the industry's most reliable extreme duty valve. To manufacture the valves we use special aerospace quality alloys, including the EV8-Z18, which provides high tensile strength. An exclusive two-step slow forging process ensures proper grain flow and virtually eliminates any damage to the material structure. The valves are then heat-treated and stress-relieved over a 48-hour period, which is the crucial base of our molecular integrity. These valves feature avionics-quality hard chrome along with a specially applied hard tip. 



- Valve Tip Length 4.2mm
- Stem Diameter 4.97mm
- Valve Length 106.8mm
- Valve Head Size 0.020" / 0.5mm
- Valve Head Diameter 32mm
- Valve Type Intake
- Valve Stem Diameter 4.97mm
- Valve Material Stainless Steel



Replaces OEM Part #  11-34-7-573-840 / 11 34 7 573 840 / 11347573840