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0603htp Hawk 15 Z

The World Products heads can use all stock LS7 valve train components, yet also have valve cover sealing surfaces raised 0.600 inches to accommodate aftermarket rockers or longer valves (of maximum overall length 5.500 inches). Valve and rocker stud angles are parallel at 12 degrees, meaning valve train geometry will be correct no matter what valve stem length is used.
World Products - LS7X - World At War

 The World Products heads can use all stock LS7 valve train components, yet also have valve cover sealing surfaces raised 0.600 inches to accommodate aftermarket rockers or longer valves (of maximum overall length 5.500 inches). Valve and rocker stud angles are parallel at 12 degrees, meaning valve train geometry will be correct no matter what valve stem length is used.  View Related Article

 

 

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