F 150 Heritage 4WD Pickup V8-5.4L CNG VIN M (2004)
Valve Seat: Specifications
Valve seat width
intake ......................................................................................................................................................................... 1.3 - 1.5 mm (0.0512 - 0.0591 inch)
Valve seat width
exhaust ...................................................................................................................................................................... 2.1 - 1.9 mm (0.0827 - 0.0748 inch)
Valve seat runout (T.I.R.) ................................................................................................................................................................ 0.025 mm (0.0010 inch)
Valve seat angle ............................................................................................................................................................................................... 45.50 degrees
