In the latest installment of General Motors' ongoing video series chronicling the build process for the pre-production Chevy Volts, you can now see the installation of a battery pack. In fact according to the video, this is the very first attempt at a pack install. Aside from creating the development vehicles, the IVER process allows the engineers to actually test and fine tune the processes that will be used to mass produce the cars on the regular assembly line. Particularly on the early cars, at each station a number of assembly line workers and engineers will gather to evaluate how all the parts go together. In the Volt, the pack fits into the tunnel with very little clearance to minimize the intrusion into the passenger area. Note that the pack is also now clad in heat shielding to minimize any thermal transfer back and forth to the car. Watch the video after the jump.