We bought the 2861 with the 7.3. They all come with the premium engine, 350HP/468TQ. It is a HUGE improvement over the V10. More powerful and a nice flat torque curve. Quieter, little heat around the dog house. Recently drove it up the mountains in PA and unlike the V10 there was no screaming engine, it just pulled up the inclines with little effort. We are very pleased with it. Plus it has a nice V8 rumble at idle.