That brake line you are referring to, goes between the two piece engine mounts on the subframe and even with the engine out, I could not run that pre-formed brake line throught those mounts. I had to remove the top plate and sit the brake line in there for it to work, so I would be calling you a miracle man if you can get it to work without lifting the engine up and taking the top plate off of the sub-frame engine mounts. Here is a pic to give you an idea how it is run. The thicker line is a gas line and the smaller line under it is the brake line that runs across and through the two sub-frame motor mounts. I dont believe there is anyway to wiggle that line through with an engine in there let alone without one in there.