The MaxxForce 7, the International/Navistar engine which is a 6.5L V8 engine or also known as the 6.4 L PowerStroke in 2008-2010 model year Ford Super Duty trucks, is a V8 turbo-diesel engine. The engine has a Series Sequential Turbocharger. They are not twin turbos, there is a high pressure and low pressure turbo, with only the high pressure turbo being a VGT (variable geometry turbo). The engine also uses a high pressure common rail fuel injection system. It produces at 3000 rpm and of torque at 2000 rpm in Ford truck applications.