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Roller rockers come in many variations. This is a comparison of a standard roller (left) with a guided or rail rocker (right). Never use rail rockers with guideplates. This may create a bind that could break parts.
Valve Training

Roller rockers come in many variations. This is a comparison of a standard roller (left) with a guided or rail rocker (right). Never use rail rockers with guideplates. This may create a bind that could break parts.  View Related Article

 

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