Late Model Stock Valvetrain
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The total valve lift on this Ford Late Model stock that Troutman is building is 0.550 inches on the intakes and 0.575 on the exhausts, which is necessary to help the unported heads flow more air. One way to get such extreme valve motion without stressing the flat tappet cam too much is to use high-ratio rocker arms. Here, Troutman mixes 1.65:1 ratio intake rockers with 1.60:1 exhausts to get the valve motion he wants. View Related Article
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