ICS's 2007 Model 633GC Concrete-Cutting Chainsaw's features include a "Leaf-Spring" starter system, new slurry channels, upgraded ignition system with improved coil sealing, a new crankcase guard, and improved vibration control. Weighing less than 18 pounds, Model 603GC features a 4.2-horsepower engine and advanced, rear-port, multi-chamber air filtration.