We all know the term K-swap, where a Honda K engine is put into another car, because this high-revving engine can be tuned to produce a lot of power. Another reason the K engines are popular is because they last so long, with care, for over 400,000 miles. Origins And Evolution Of The Honda K Series2006 Honda Civic Si engine HondaThe Honda K engine family made its debut in 2001, building on the success of the popular B-series. Introduction Of The K-Series2001 Honda Civic engine HondaThe original K engines were designed to replace Honda's B-series and bring newer technology to mainstream models. These are the basis of the K engines' long lifespan and ability to keep going for way more miles than conventional engines.