1. Is this site reputable? Japanese Engines Japanese Motors JDM Engines JDM Motors Used Honda Engines Used Nissan ENgines Used Toyta Engines Used Mitsubishi Engines Used Mazda Engines. All our engines & transmissions have low mileage. 2. Why do they claim that any engine/trans combo going into an EF civic has to have a B-series cable transmission. 3. Could a decent shop with some experience swap a B18C-R into a 91 EF civic SI?