The 6 litre motor is the exact same on the outside as the 5.7. The difference is cast iron construction and 4 inch as opposed to 3.9 inch bore size. They will bolt directly to a 4l60e transmission. I would say the best bet is to drop the engine and trans as a unit out of the car with a palet jack. What exactly do you mean by "my Ls1 blew up" thought? I am just curious about the damage and the cause.