History
The S20 was one of the technical carryovers to the Nissan brand from Prince technology. The Skyline model - built as a Prince car since the model's inception in the 1950s - received the new engine. The Skyline GT-B in 1969 saw the introduction of the PGC10 GT-R, followed by the KPGC10 GT-R with a shorter wheelbase and 2 fewer doors in 1970. This model would later win a 50 straight touring car victories. For 1972, Nissan introduced the C110 Skyline powered by the L series of engines. A small number of KPGC110 GT-R would be built utilizing the remainder of the S20s.
The S20 was later fitted to the Nissan Fairlady Z432, a sports racing model of the Nissan Fairlady Z (S30) model line.
The S20 features a dual overhead cam, cross-flow head with four valves per cylinder, and hemispherical combustion chambers. Early versions were fed via triple Weber 40DCOE carbs; models after 1969 featured Lucas mechanical fuel injection. In racing trim, the fuel-injected motors reportedly produced over 225 bhp (168 kW), with 250 bhp (190 kW) for larger tracks like Fuji Speedway.
This engine was used in the following vehicles:
- Skyline GT-R (PGC10 type) 4-door sedan 1969 - 1970. (832 units)
- Skyline GT-R (KPGC10 type) 2-door coupe 1970 - 1972. 70 mm (2.8 in) shorter wheelbase than the PGC10. (1,197 units)
- Skyline GT-R (KPGC110 type) January–April 1973. (197 units)
- Fairlady Z432 (PS30) 1969 - 1972
- Fairlady Z432R (PS30SB) Z432 race car based nearly 100 kg (220 lb) lighter than production Z432. (3 units)
Read more about this topic: Nissan S20 Engine
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