Hi guys, i got a serious problem with my sisters truck. So a week ago the head gaskets went out with that the cyl. heads went also, now i dont know if we should rebuilt it up or look for another motor(which i have, prices are from $1300 to $2000). Now my question would be up to what year of a 4.7 can we drop in? I've heard that only the 02 can go in there and i've also heard up to the 05s? So if somebody could help me please i would appreciate it. THANKS!