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Solid roller cams come into their own at the extremes of engine rpm, lift, and valvespring load—all factors that go hand in hand with a max-power engine effort. All of these factors, however, will compromise longevity. Manufacturers are producing solid-roller lifters with improved oiling to enhance street durability, but unless the engine combination and rpm requirements call for it, a hydraulic roller or even a flat tappet cam may be a better alternative. View Related Article
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