Rocky Auto has a unique 1972 Nissan Skyline (KGC10) at their company in Japan. The Skyline would have come from the factory with a 2.0 L L20 inline-six. It is now powered by a Nissan RB20 inline-six bored to 2.3 liters. The motor features three twin-throat Mikuni-Solex carburetors, high-lift camshafts, and 50 mm (1.9 in) exhaust. Behind the motor is a manual transmission and presumably the factory Skyline rear end.
Source: Rocky Auto