VALVE - 40mm Exh, Guzzi V11-(over size) code F16740
VALVE - 40mm Exh, Guz V11-O/S (over size)
VALVE - 40mm Exh, Guzzi V11-O/S oversize
Fast By Ferracci Super-Flo valves are the best of their kind. We have developed a valve that can withstand the punishment of high rpm, high compression engines. Our Super-Flo design actually reduces the stem diameter in the port area. We use an innovative technology that compresses the stem to achieve the Super-Flo effect with special rollers, maintaining and compacting the grain flow in the material. This exclusive process provides our valves with excellent strength and reliability, increasing flow over straight stem valves considerably, yet with no adverse effect on reliability.