This firing order is consistent across most Ford 390 engines, regardless of whether they're used in cars, trucks, or other applications.
Here's a breakdown of the firing order:
* Cylinder 1: Firing first
* Cylinder 5: Firing second
* Cylinder 4: Firing third
* Cylinder 2: Firing fourth
* Cylinder 6: Firing fifth
* Cylinder 3: Firing sixth
* Cylinder 7: Firing seventh
* Cylinder 8: Firing eighth
Remember that this firing order is crucial for proper engine operation, as it dictates the sequence in which the spark plugs ignite and the cylinders fire.