2000 excursion v10 knock

[351fifty]

i got a 2000 ex and it sounds like it dropped a rod or something, its knockin pretty good on the top end and i need it running again, its my neighbors truck an i dont have much experience with these triton motors, but he recently got out of the marines, and this is his only vehicle, and i just loaned him my mustang to go to a job interview, he really needs some help guys so if anyone could help me with fixing his motor short of doing a cummins swap or a motor swap that would be awesome, if there are any known problems like this with the v10

[351fifty]

anybody got any ideas here, so far we have been told checck the alt, plugs, ign coils, valve covers, oil, and have come up with nothing after having changed the bad alt and new plugs, gonna use a test light and multi meter later to check ign coils and fuel injectors