The act of installing a chevrolet LS series V8 engine into a car, normally Mazda RX-7s and
Ford Mustangs. Usually frowned on by
internet "car guys", despite the fact they make lots of
power and are cheap.
"Oh my God, an
LS swap??? That's so unoriginal, you've
ruined that RX-7! You've utterly destroyed the
spirit of the car!!!" 12 year old, who doesn't own a car, on a forum.