upgrade the rod bolsts when you do it. the ls ones wont hold up to much abuse past 7400 rpm. if ur gonna do it right id say to replace all the bearings and have the rods at least shot peened. maybe sine ur doin that go ahead n put some b16 pistons in it to bump compression and get new rings. get the golden eagle ls vtec kit as well itl save u quite the hassle. bolt the head on with new bolts or studs. i used regular gsr head bolts. upgrade to a gsr water pump and type r oil pump just for peace of mind. what ever ecu you get make sure its been tuned! u dont want to break in your new setup and start to beat on it and have it blow up bc its not running the right amount of fuel/timing. dont cut corners and if it costs more its probably worth it.....think i covered it all.