engine de greaser and a garden hose for all the parts off the engine. blower em dry or wipe em dry, leave out in the sun to dry up nice so it dont rust up.
brake cleaner for the engine its self, flush the valley with oil, it drops right in the pan. take the oil filter off let that all drain out from there.
your still gonna have some milkshake left in the oil pump and lifters and oil galleys of the block, why you clean it up best you can, put all back together, then a fresh oil and filer, run the car for like 3 or minutes, then dump the oil and filter, then new oil once more, make sure its clean on the dip stick, if its milky looking or dirty looking change it once more.