Ferrea Competition Plus Exhaust Valve Kit 31.5mm +1mm - BMW / M50 / M51 / M52 / M54 / S50
M50-M54 & S50 engines contain 24 valves - 12 intake and 12 exhaust this Set contains 12 +1mm oversized exhaust valves.
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 3.7mm
- Stem Diameter 5.96mm
- Valve Length 106mm
- Valve Head Size 0.040" / 1mm
- Valve Head Diameter 31.5mm
- Valve Type Exhaust
- Valve Stem Diameter 5.96mm
- Valve Material Stainless Steel, Super Alloy
- Valve Face Dish
Replaces OEM Part # 11-34-1-739-823 / 11 34 1 739 823 / 11341739823
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