the 6.ol has alot of electical problems and injector problems. it has alot more torque and power.
the 7.3l old reliable, as long as you keep up the mantaince and do not cheep on the repairs its a very good engine. I have worked on both I find the 7.3l is so basic than the 6.ol is a nightmare (flat rate to change the fan belt 2 hours). also the 7.3l may take time to get up to the speed with a heavy load but it will do it. I have seen the 7.3l with 300,000 km to 500,000 km with no problems. I have seen the 6.ol with 180,000 km and had 28 injectors replaced so fare. |