yeah all engines up to 2001 will be a straight swap iv not seen any of the newer lumps so dont no whats different be better rebuilding the old engine tho then u no its brand new and gonna be reliable, any new engine u fit may need attention or just go pop after some milage mate
just for confirmation really- the engine is 2003 4bl engine - mine is a 4bl engine from late 2000. are these a straight swap in? my manual says upto 2002 should be same model? anyone help pls