4/7 swap in firing order..

This is general forum,Do Not use the F word! I have edited it out for you this time.Thank's for your time and attention to this matter 8)
OH thier different alright...
you can lump them into 3 catagories:

5.0L HO, 351W(himpy), 351M(oronic), 351C(atostrophic), 400 for the 1-3-7-2-6-5-4-8 firing order

289, 302, 352, 390, 427, 428, 429, 460 for the 1-5-4-2-6-3-7-8 firing order

FE = &%$#ing Engine