[Cool Hand Lurker]

The guy who swapped the engine made up mounts from flat stock and boxed in one side of the mounts. When the motor was revved the torque of the motor made the block twist, which made the mounts raise and lower a little which in turn caused the frame rails to also twist. Definitely not acceptable. Either the rails need to be boxed or a common cross member must go from one side to the other, from one mount to the other. That will absorb the torque and keep the mounts from moving up or down at the engine end.