When did Detroit stop making the series 60 engine?
When did Detroit stop making the series 60 engine? The 12.7L engine was favored in buses for its better fuel consumption. In 2007 the 12.7-liter Detroit Diesel Series 60 was discontinued. Once the 12.7-liter Series 60 was discontinued, the 14-liter Series 60 replaced it. By 2008, Detroit Diesel had produced one million Series 60 engines. Can a 12.7 Detroit upgrade make a hard pull? I get the ecm back and install it into the truck and was a good noticeable difference from stock. But something wasnt right the truck would only make around 29psi of boost on a hard pull....