There's something inherently beautiful about engines. They're not only the soul of every car, they can also be seen as pieces of NSFW artwork. Here are 20 engines that might make you cheat on your usual manufacturer of choice.
The Lotus-Ford Twin Cam engine was based on Ford's Kent, with a Lotus-inspired Cosworth alloy twin-cam head. This Lotus-Ford engine would go on to be used in a number of Lotus production and racing models.