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Performance Quotient Series Rocker Arm Systems are engineered to maximize the valvetrain efficiency for many popular Chevrolet, other General Motors, Ford, Mopar, OEM and aftermarket performance and racing cylinder heads. CNC machined billet steel pedestals, ground steel alloy rocker shafts, PRW Torx aviation quality fasteners, and needle roller bearings from one of the finest manufacturers in the world comprise the foundation of Performance Quotient Rocker Arms and Rocker Arm Systems. The Performance QuotientMopar shaft rocker system is specially designed to fit all Low & Medium-rise, Tall Port OEM production, Edelbrock and other aftermarket cylinder heads, fulfilling the needs racers and performance engine builders at all levels.

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