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Piston - Diameter

  1. Measure the piston diameter 90 degrees from the piston pin and 42 mm down from the top of the piston at the point indicated. Refer to ENGINE- 3.8L & 3.9L or ENGINE- 4.6L (2V) or ENGINE- COBRA 4.6L (4V) or ENGINE - MACH1 4.6L (4V) for the procedure .