FORD 2009 F-550 v.2 - Manual (Page 409)

ENGINE DATA
Engine 5.4L V8 engine 6.8L V10 engine
Cubic inches 330 415
Required fuel 87 octane 87 octane
Firing order 1-3-7-2-6-5-4-8 1-6-5-10-2-7-3-8-4-9
Spark plug gap
1.0–1.1mm
(0.039–0.043 inch) 1.0–1.1mm
(0.039–0.043 inch)
Ignition system Coil on plug Coil on plug
Compression ratio 9.8:1 9.2:1
Drivebelt routing
5.4L V8/6.8L V10 engines
2009 F-250/350/450/550 (f23)
Owners Guide, 2nd Printing
USA (fus)
Maintenance and Specifications
409