Manley Expands “Extreme Duty” Inconel Exhaust Valve Offerings
With engine builders striving to build higher amounts of combustion pressure through increasing supercharger and turbocharger boost levels, Manley Performance has the answer for these high exhaust temperature environments with its expanded Extreme Duty valve line. Originally developed for supercharged, nitromethane-burning engines, Manley’s Extreme Duty valves —manufactured from the company’s unique XH-432 XtremeAlloy (Inconel material and proprietary heat-treat process) have been the mainstay of drag racing’s top Pros for decades…
