The phrase refers to a collection of components engineered to facilitate the replacement of an original engine in a specific Honda Integra model with a K-series engine. This process involves removing the factory-installed powerplant and installing a different, often more modern and powerful, engine in its place. These kits typically include engine mounts, wiring harnesses, axles, and other necessary hardware to ensure compatibility and proper function of the new engine within the older chassis.
Such modifications offer performance advantages, including increased horsepower and torque, improved engine reliability, and access to a wider range of aftermarket performance parts. The conversion allows enthusiasts to modernize their vehicles, overcoming limitations of older engine technology. Historically, this type of engine replacement has been a popular method for enhancing the driving experience of older vehicles while retaining their classic aesthetics.