In the 2008 model, with the initiation of the 8.4 L V10 engine, the Viper received a 25 lb-ft (34 N-m) torque boost up to 560 lb-ft (759 N-m). The power was also given a fillip from 90 hp (67 kW) to 600 hp (450 kW), and the engine capacity was improved up to 510 cubic inches (8,383 cc) from 505.6 CID (8,285 cc) of the 8.3 L engine. With the help of larger valves and dual electronic throttle bodies, better flowing heads are now received




