for a complete 350 swap you need the motor, tranny, custom header, electric fans, corvette radiator, custom motor mounts, smaller starter, and a few other things other wise your in for a whole lot of trouble. check out s10forum.com there is a lot of info and a lot of owners of v8 s10's.
http://www.s10forum.com/forum/showth...threadid=23315
this guy knows what he is talking about.