If I already had an apex sitting in my garage, I would probably throw it in there and sell the brand-new engine which will probably fetch more money than the apex. The turbo cost 4000. What could you sell the apex for. That's another way to look at it. But the sound of a four cylinder is greater than the sound of a three cylinder, and doesn't it rev to 12,000? I've Done a 5.0 swap in a Ford ranger, and there's definitely a fun factor to motor swaps but it's also a total pita.