engine swap

i have an 84 S15 4X4 with a 2.8 what do i need to do to replace it with a 350 small block, i already have a 3" body lift, is there any other requirements?

there's about a million little things you don't realize till your in over your head. i suggest getting a conversion kit theres quite a few available. first off your tranny won't bolt up, you need a special oil pan.