The original 1990 Honda NSX had an exact engine displacement of 2,977 cc.
That figure belongs to Honda’s C30A, a 3.0-liter naturally aspirated V6 developed specifically for the NSX. The engine used double overhead camshafts and Honda’s VTEC variable-valve technology, allowing the mid-engine sports car to combine high-revving performance with everyday drivability.
The NSX debuted in Japan in 1990 and was sold in North America as the Acura NSX. Its lightweight aluminum construction, precise handling and reliable V6 challenged the traditional idea that an exotic sports car had to be temperamental or difficult to use.
The 2,977 cc figure is easy to confuse with the rounded “3.0-liter” description. Later first-generation NSX models received the larger C32B engine, whose displacement was 3,179 cc. That later engine is why some NSX specifications list 3.2 liters, but it does not describe the original 1990 version.