There's no single "7.5 Ford" engine. Ford has produced many engines over the years with displacements around 7.5 liters (or 460 cubic inches, which is approximately 7.5 liters). To determine the firing order, you need to specify the
exact engine code found on the engine block itself. This code will be a series of letters and numbers.
Once you have the engine code, you can look up the firing order in a Ford repair manual or online resources specific to that engine.
