If your seeking some valve train improvements, Manton has the answers. Manton products are used on many high level builds, including those here at DHD.
These tool steel Duramax rocker arms assemblies replace your mass produced OE arms and shafts with an engineered, high tech, close tolerance roller tip assembly thats substantially stronger!
This assembly includes new Manton rocker arm shafts. These shafts are heat treated .250" wall chromoly for superior strenght and are also machined to improve oiling though-out the entire rocker arm rotation.
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