1-2-7-3-4-5-6-8
As for the cyl #'s on the 7.3L,6.0L, 6.4L diesels its passenger side (right side) its back to front 1-3-5-7 and drivers (left side) front to back 2-4-6-8.
It could either have a gasoline engine or a diesel engine
6.0 Diesel firing order is 1-2-7-3-4-5-6-8. Same as the 7.3. As for the cyl #'s on the 7.3L,6.0L, 6.4L diesels its passenger side (right side) its back to front 1-3-5-7 and drivers (left side) front to back 2-4-6-8.
The 2015 Ford F-450-Super-DUTY runs on diesel.
The 2014 Ford F-450-Super-DUTY runs on diesel.
The 2010 Ford F-450-Super-DUTY runs on diesel.
The 2011 Ford F-450-Super-DUTY runs on diesel.
The 2013 Ford F-450-Super-DUTY runs on diesel.
The 2009 Ford F-450-Super-DUTY runs on diesel fuel.
The 2012 Ford F-450-Super-DUTY runs on diesel fuel.
The 2008 Ford F-450-Super-DUTY runs on diesel fuel.
if your 1997 super duty is a diesel there is no catalictic converter if it is gas, then it is in the exhaust will look just like a muffler
between 0 and 18mpg