Firing order: 1-5-4-2-6-3-7-8 (15426378).
Cylinder numbering: Right bank 1-2-3-4 front to rear, left bank 5-6-7-8; #1 is right-front.
| Engines | Ford small block 221, 260, 289, 302 with the original order; includes the 1980s-1990s F-Series/Bronco/Econoline 5.0L EFI truck engine |
| Years | 1962-1997 |
| Firing order | 1-5-4-2-6-3-7-8 |
| Cylinder numbering | Right bank 1-2-3-4 front to rear, left bank 5-6-7-8; #1 is right-front. |
| Distributor rotation | counterclockwise |