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351 Cleveland Performance Engine Build Crane Energizer

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These are Crane Energizer 1.7:1 forged aluminum rocker arms designed for the 351C, 351M, and 400M. They sport a precision needle bearing fulcrum and roller tip to reduce friction. John stresses checking rocker arm-to-valve stem geometry, which is rooted in pushrod length. When it comes to adjustment, have both valves at rest on compression stroke, and then slowly tighten the poly-lock until the pushrod cannot be turned. Then tighten 1/2-3/4 turn for street.
351C Performance With Common Parts - A Cleveland Course of Action

 These are Crane Energizer 1.7:1 forged aluminum rocker arms designed for the 351C, 351M, and 400M. They sport a precision needle bearing fulcrum and roller tip to reduce friction. John stresses checking rocker arm-to-valve stem geometry, which is rooted in pushrod length. When it comes to adjustment, have both valves at rest on compression stroke, and then slowly tighten the poly-lock until the pushrod cannot be turned. Then tighten 1/2-3/4 turn for street.  View Related Article

 

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