1975: Hollywood spokesperson Chuck Connors takes a break during a ride on a firm's legendary liquid-cooled Brut. Company photo. Courtesy Brad Goodenbour. Scorpion described the machine as follows: The liquid-cooled engine of Scorpion's Brut comes in either twin-or three-cylinder models, with displacements of 340 and 440cc. It has an aluminum chassis and slide-rail suspension. The track is 15 1/2 inches wide. Liquid cooling lets the engine run at a constant temperature regardless of how cold or warm the air is when you're riding. Model with 440cc engine has CDI. See Terms of use. Link to Home.