6.7 Powerstroke Jesel Pro-Steel Rocker System

  Lead Times Apply Engineered excellence. The brilliant engineers at Jesel have done it again!  We are proud to bring you our exclusive Jesel Pro-Steel Rocker System for the 6.7 Powerstroke, the worlds first and only aftermarket rocker system for this platform. Engineered to handle the immense cylinder pressures of 3000hp competition engines and strong enough to endure a grueling 24 hour road race with miles to spare. Through extensive engineering and FEA analysis, Jesel has designed a steel bodied rocker with less deflection and better moment of inertia than factory, aluminum, or any other rockers on the market. These advancements allow engine builders the opportunity to develop a more aggressive cam profile by utilizing a more stable valve train package, which allows the engine to make more power, higher in the RPM range.   Jesel Pro Steel Rockers are ideal for engines equipped with turbos, superchargers or nitrous where excessive exhaust cylinder pressures surpass the limits of fac