Cylinder Head - Distortion

Special Tool(s) 

Fig 1: Identifying Special Tool(s) (Cylinder Head)

Courtesy of FORD MOTOR CO.

1. Use a straight edge and a feeler gauge to inspect the cylinder head for flatness. If the cylinder head is distorted, install a new cylinder head.

Fig 2: Inspecting Cylinder Head For Flatness

Courtesy of FORD MOTOR CO.