For better or worse, the addition of forced induction has become almost obligatory when designing a modern engine. Because of this, a 2.0-liter street engine can now produce the horsepower of a 3.0-liter n/a engine and sometimes even more. But back in the day, when turbochargers were not so popular, people could get an idea of an engine’s capability solely from its displacement. Some of you might know that displacement is calculated by multiplying the bore and stroke and then multiplying that by the number of cylinders. But in some cases, the result doesn’t match the badge. Here are some of the offenders.