Editing EMC E3 (section)

==Engine and powertrain==
The E3 introduced a 12-cylinder version of the [[EMD 567|567 series Diesel engine]], with two being used for a total of 2,000&nbsp;hp at 800 rpm. Earlier E-units had used two Winton 201A [[prime mover (locomotive)|prime mover]]s, but that engine was ill-suited to railroad use and was unreliable. The 567, which was specifically designed for railroad motive power applications, is a mechanically aspirated, two-stroke 45-degree V-type with {{convert|567|cuin|cm3 L}} displacement per cylinder, and remained in production until 1966. Two [[direct current]] generators, one per engine, provide power to four [[traction motor]]s, two on each truck, in an A1A-A1A arrangement. This truck design was used on all E-units and on MP 7100, CB&Q 9908, and Rock Island [[AB6]] power cars. EMC/EMD has built all of its major components since 1939.<ref name=pin73>Pinkpank 1973, pp. 13, 26, 90, 101, 106, 118, 121, 122.</ref><ref name=ros03>Ross 2003, pp. 261, 273.</ref>