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1 A stock sled-type rocker arm with ball fulcrum is shown here. While you can get stock type replacement rockers made from better materials, they should be considered only for extremely tight budgets and/or the most basic of engine builds. The wide contact pad and gentle radius on the rocker is forgiving of incorrect pushrod lengths, but you're still giving up power via friction and less than accurate geometry, not to mention stock rockers don't always have enough movement to accommodate higher lift aftermarket camshafts. View Related Article
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