what makes you think someone dropped in a 1.6? They may have just done a head swap, which is VERY common... basically, there's a small flat square on your block right near one of the tranny mounts... kind of behind the edge of the radiator. Hard to explain, but look for it. It's on the front of the block, to the left. That space has an engine block code stamped on it. If it says D15B7 (which I'm willing to bet it does), someone did what's called a mini-me swap on the car. Bolted on a SOHC VTEC head to give a little extra power. If the motor says D16Z6 on it, they dropped in a whole new motor. If it is indeed a whole new motor, it either came out of a del Sol Si model or a Civic Si model from 92-95.. both came with the z6. It's still an automatic because doing an auto to manual conversion is a PAIN. If you're in a city that does any kind of emissions testing, then your motor is definitely newer than the car, because putting in a motor from an older car automatically flunks you on emissions. My theory in life at this point... if it runs, don't question it. Just smile and drive.
