The E7 was an A1A-A1A passenger train locomotive built by General Motors’ Electro-Motive Division of La Grange, IL. The engine had 2,000-horsepower. The A stands for cab versions and 428 E7As were built from February 1945 to 1949. 82 booster E7Bs were built from 1945 to 1948. The 2,000 horsepower was delivered by two 12 cylinder model 567A engines. Each engine drove an electrical generator to power the two traction motors on one truck. The E7 was the eighth model in a line of passenger diesels of similar design known as EMD E-units.
From the side angle, the front of the nose of an E7A was less slanted than on earlier EMD passenger locomotives. The E7, E8, and E9 units have been nicknamed “bulldog nose” units. Some earlier units were called “shovel nose” units or “slant nose” units.
A Gulf, Mobile and Ohio Railroad E7A, #103-A, appears at the start and end of the 1967 film In The Heat Of The Night.
A Southern Pacific E7A, #6001, is the train that figures prominently in The Hitch-Hiker, a popular 1960 episode of the anthology television series, The Twilight Zone, starring Inger Stevens.
The Railroad Museum of Pennsylvania, in Strasburg, PA has the only surviving E7A and it is the PRR E7A #5901. This locomotive has been cosmetically restored and is on display indoors. To see the bulldog nose on display go to https://www.youtube.com/watch?v=C_-WKisEbbs or go to the Railroad Museum of Pennsylvania for more information http://rrmuseumpa.org/collections/roster/
Pennsylvania No. 5881 was a 5 stripe.
Southern No. 2910 see image at Railpictures at http://www.railpictures.net/photo/376119/
Chicago Burlington & Quincy No. 99168 or CB&Q #99168
New York Central No. 4028 or NYC #4028 can be seen at Railpictures at http://www.railpictures.net/photo/333372/
Baltimore & Ohio No. 74 or B&O #74 can be seen at Railpictures at http://www.railpictures.net/photo/387701/