It's running an CG13DE, which I think is a good idea if it's an auto block. The usual stuff you'd expect to find basically, lightened & balanced bottom end, forged rods and pistons, headwork, custom plenum, Nismo cams with pulleys, ARP suds blah blah blah.....
The choice of internals is an interesting one though, it uses Hayabusa conrods, (more than likely Carrillo but could also be from Arrows Precision), because the dimensions seems to fit, however the prices of these are not cheap and are actually more than a bespoke set of rods from someone like performance unlimited with pistons......but as I said earlier, there's more than one way to skin a cat.