"Harley Davidson VTwin (Twin cam 88) Kinetic Cutaway Engine" by Greg Stirling. This is an operating cutaway art piece made from a running 2008 Harley Davidson VTwin engine. Hundreds of hours were spent polishing, fabricating and machining this work of art. It features a quiet stepper motor drive with variable speed control, stainless steel electropolished drive chain, polyethylene piston sleeves, decorative brass piston rings, polished aluminum and stainlesssteel parts on a walnut base with hand rubbed oil finish. This unit is mated a working gearbox and 6 speed shift mechanism. Greg Stirling is a fine artist and Silicon Valley, CA factory automation equipment and machine builder. www.gregstirlingart.com