The beloved C20 was honda's first V6 engine and was offered with the first every winged turbo in a production car overseas.
The C25 was the first V6 state side available in acuras flagship vehicle. It was a single overhead cam engine in a 90 degree configuration and sat horizontal in a FWD format.
1986-1987 Acura Legend Sedan, 151 hp
C27a
1987 Acura Legend Coupe , 161 hp (120 kW)
1988-1990 Acura Legend, 161 hp (120 kW)
1995-1997 Honda Accord, 170 hp
There is rumor that these engines came in a pre-production twin turbo setup and also that the basis of this engine was created from F1 technology.