Union Pacific also purchased 107 AC6000CW “convertibles” from GE. These diesels were built with 4,400-hp 7HDL16 engines that could be replaced at a future date with a 6,000-hp engine. The AC6000CW has ...

But GE’s AC6000CW can be summed up with a simpler designation: “big.” The 76-foot-long locomotive has flared radiators at the rear of the hood to cool its 6,000-hp 7HDL16 engine with twin 7S1408D ...