currently doing a 5.7 swap into my 1998 jimmy named "jimbob" just wantin to get some ideas and advice on what to do. heres my plan : buying a 5.7 vortec from a 1999 suburban. using my same harness and pcm from the jimmy. getting the pcm flashed for the 1999 express van tune. adding 4 injector wires to the red pcm connector. buying engine conversion mounts from jagsthatrun.com, cheap ebay headers for now til i have more money. b&m shift electronic shift kit for 4l60e trans. any opinions or advice on what to do, or any hang ups that will come up just leave them here!! thanks 