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Piston - Diameter

  1. Measure the piston diameter 90 degrees from the piston pin and 42 mm (1.65 in) down from the top of the piston at the point indicated. Refer to ENGINE - 3.0L (2V) or ENGINE - 3.0L (4V) for specifications.
    Fig 1: Measuring Piston Diameter
    G01363293Courtesy of FORD MOTOR CO.