Parts For the Series 3 Morris Commercial Normal Control was the replacement for the NV model and was now based on the new Austin cab derived from the earlier Loadstar. This was a team effort at BMC and come in a few load ratings from the 303NC 3 and 4 tonner up to the heavier models of 5 and 6 tonners. The engine range went from 3.4 litre diesel and later 3.8 litre diesel or 4.0 litre Petrol for 3 and 4 tonner and up to the 5.1 diesel and 5.7 litre diesel for 5 and 6 litre models. There was a 2.2 litre Petrol engine fitted to 30cwt model I believe although these are not common.