Fairlady Z featured a 2.0L SOHC L20A straight-six engine producing , while the US Datsun 240Z featured a 2.4L L24 inline-6 with twin Hitachi SU-type carburetors that produced (SAE gross horsepower). A third Z, the Z432 (PS30) shared a performance version of the DOHC 2.0 L S20 engine with the Nissan Skyline 2000 . In Japan, the Z was still known as the Fairlady to keep the car in line with the previous generation Datsun Sports roadster. Japanese domestic market (JDM) versions had the Fairlady Z badge on the lower fenders with the 432 badge above (the 432 designation was 4 valves, 3 carburetors, and 2 camshafts). However, Yutaka Katayama ensured the American version had all Nissan, Fairlady Z, and 432 badging replaced with "Datsun" and prevented all dealer shipments until they were replaced. The 240Z was released in America on October 22, 1969. Combining good looks, and powerful performance, it sold over 45,000 units through the '71 model year and over 50,000 and 40,000 in 1972 and 1973, respectively. The 260Z was released in 1974. Engine displacement increased to 2.6 L, and Nissan introduced a 2+2 model option with a 30 cm (1 foot) stretched wheelbase and length. Engine power increased to , except for most areas of the U.S., where power decreased to (SAE net horsepower) due to new camshafts, carburetors, and lower compression, that were introduced to comply with new US emissions regulations. The 280Z was released in 1975 for North America only (not to be confused with the second-generation 280ZX) and featured a further engine displacement increase, to 2.8 L. A major change was the introduction of Bosch fuel injection, replacing the previous SU carburetors. This resulted in a power increase to (SAE gross horsepower), offsetting increased weight from added luxury features and an enlarged bumper that met US Federal regulations. Export markets outside North America however kept receiving the Datsun 260Z, until the introduction of the Datsun 280ZX in late 1978. Second generation: Nissan Fairlady 280ZX (S130/Z30) Known as the Datsun/Nissan 280ZX in export markets, the car continued to use the "Fairlady" moniker in the Japanese domestic market where 2-litre inline-six engines were also available and were first introduced in 1978. That same year, main rival Toyota introduced the Supra as its answer to the new Fairlady, although it also continued to produce the Celica that it was based on. The only thing left unchanged