When Junkman stuffed a Chevy 400 in a '57 356, we all thought it was a pretty wild Porsche power upgrade. But what are we to make of a 911 with a 500-cubic-inch Caddy engine in the back? Tipster Jim hipped us to this '80 Porsche with a very clean Eldorado drivetrain swap; the car has been listed twice on eBay, but the reserve has not yet been met. The engine was put together by the Caddy gurus at Maximum Torque Specialties, which means it grunts out enough power to drag a Saturn V rocket to the launch pad. The description is very detailed and the photos are of exceptional quality for eBay. The best part? Fake luggage used to cover the front of the mid-mounted engine! [eBay]