I need to get a block heater (should come stock oh well) What do I need to get (part numbers)??? Is it the whole mess or do I need to get the heater and the cord seperate??? How hard is it to put it in? Will fluid come out??? If so does this go in the antifreeze or oil. What kinda antifreeze do I use if I need it. prices??? Any help would be greatly appreciated... Thanks a million