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To make the most of the cylinder head castings, they need to be filled with top-quality components. The Manley valves are controlled by PAC beehive springs, with Manley beadlock hardware keeping it all together. The Harland Sharp rockers feature a 1.8:1 ratio, while stout 3/8-inch COMP pushrods reduce the potential for valvetrain deflection. Motion from the Bullet hydraulic roller cam is transferred by a set of COMP limited-travel hydraulic lifters.