!: Buy Crane Cams 44746-16 Energizer Rocker Arm for Ford V8 Engine, (Set of 16) Buy Now
Crane Cams Energizer Rocker Arm for Ford V8 Engine, (Set of 16) features ordinary stamped steel (or in some instances cast iron) rockers. They rotate on a pivot ball and have substantial friction, while also "scrubbing" the tip of the valve. The roller lifters have both a roller bearing fulcrum and a roller tip, significantly improving efficiency. Crane's aluminum roller rocker arms also reduce valve train weight - especially mass moment of inertia (which is what impacts the valve springs and RPM potential). The aerospace quality aluminum alloys used by Crane also provide an excellent strength-to-weight benefit. The Ford Motor Company selected Energizer rocker arms for their Cobra V-8 production engines and backed them with a full factory warranty.
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