F 150 Super Crew 2WD V8-5.4L Prop SOHC VIN Z (2003)
Piston Ring: Specifications
Piston ring end gap-top ................................................................................................................................................. 0.13-0.28 mm (0.0051-0.0110 inch)
Piston ring end gap-intermediate ................................................................................................................................... 0.25-0.40 mm (0.0098-0.0158 inch)
Piston ring end gap-oil control ...................................................................................................................................... 0.15-0.65 mm (0.0059-0.0256 inch)
Piston ring groove width -top ........................................................................................................................................ 1.53-1.55 mm (0.0602-0.0610 inch)
Piston ring groove width -intermediate ......................................................................................................................... 1.52-1.54 mm (0.0598-0.0606 inch)
Piston ring groove width -oil control ......................................................................................................................... 3.030-3.050 mm (0.1193-0.1201 inch)
Piston ring width ........................................................................................................................................................... 1.49-1.46 mm (0.0587-0.0575 inch)
Piston ring-to-groove clearance-top .......................................................................................................................... 0.030-0.050 mm (0.0012-0.0020 inch)
Piston ring-to-groove clearance-intermediate ............................................................................................................ 0.030-0.080 mm (0.0012-0.0031 inch)
