brent012,
No personal offence intended, but that video is utter, utter garbage. It has all the usual Katayama Lore (the normal huge exaggeration of his role) but adds in - quite bizarrely - some nonsense about engineer Dr Shinichiro Sakurai (famously synonymous with Prince Motor Co, the Skyline marque and Prince - then Nissan's - racing activities) being involved. They imply that the L24 engine came about because Nissan "bought" Prince (they didn't...) and Dr Sakurai started designing Nissan engines (he didn't).
Real WTAF stuff.