AS MUCH AS A GROWN MAN STUFFED INSIDE A LITTLE BOX. I just put one in a fox laying on the ground. Luckily I have a friend who is pretty damn strong and he put it on top of a flat 2x10 section on his chest and lifted. not fun, very freakin heavy, almost impossible to line up flexplate and convertor on the ground. close to 200 easy with fluids adn convertor