40kg - 400hp Impressive, though I would say it might last a week to before it needs rebuild

Is that 40kg for complete long motor with turbo & intake manifolds, flywheel, harness or a bare bones long motor like he is holding up in the pic?
I thought I was doing well to squeezed 200hp from my old 1.5 civic all aluminium ew2/d16a3 Frankenstein build. I did have a old printed pic floating around (before digital cameras) of me standing in my workshop holding the complete engine in two hands, basic long motor at a guess I would say it was about 50kg without the flywheel. Though I wasn't cheating with a turbo.
Kurt