The best rocker arms for Viper come from Jesel. These 1.85 ratio roller rockers are the ultimate balance of mass, stiffness and strength. Walk through the pits of any professional racing venue and you would be hard pressed not to find a JESEL Pro Series rocker system controlling the valvetrain. For over 28 years, championship winning racers in virtually every form of racing from NHRA Pro Stock to Sprint Cup rely on JESEL shaft rockers to get them into the winners circle. Used by top engine builders worldwide, JESEL rockers continue to set the standard by which all others are measured. The excellent mechanical properties inherent tothe custom blended 7000 Series aluminum alloy allows for the design of an extremely durable and lightweight valvetrain assembly. Tensile strength ofa custom blended alloy at 300′ far exceeds that of the less expensive, industry standard 2024 alloys. Low moment of inertia along with FEA designed bodies insures that lobe lift is not wasted due to rocker body deflection.
Jessel 1.85 Ratio Pro Series Shaft Rockers for 08-10 Vipers