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 thematerial 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.
Stock size valves (STD)
Intake Valves - F2175P
Intake
Head Diameter: 35 mm
Stem Diameter: 5.47 mm
Overall Length: 113.25 mm
Tip Length: 4.24 mm
Reference: 15 Deg..Super Flo. Stock size. Single Groove.
Exhaust Valves - F2181P
Exhaust
Head Diameter: 29 mm
Stem Diameter: 5.46 mm
Overall Length: 105.90 mm
Tip Length: 2.32 mm
Reference: 25 Deg..Flo. Stock size. Single Groove. Super Alloy
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