EMD E-unit
Models

Model designation
Build year
Total produced
AAR wheel arrangement
Prime mover
Power output
Image
EA/EB
1937–1938
6 A units, 6 B units
A1A-A1A
Winton 201-A
1,800 hp (1,300 kW)
-
E1
1937–1938
8 A units, 3 B units
A1A-A1A
Winton 201-A
1,800 hp (1,300 kW)
Golden Gate Santa Fe train.JPG
E2
1937
2 A units, 4 B units
A1A-A1A
Winton 201-A
1,800 hp (1,300 kW)
City of Los Angeles 1944.JPG
E3
1938–1940
17 A units, 2 B units
A1A-A1A
EMD 567
2,000 hp (1,490 kW)
-
E4
1938-1939
14 A units, 5 B units
A1A-A1A
EMD 567
2,000 hp (1,490 kW)
-
E5
1940–1941
11 A units, 5 B units
A1A-A1A
EMD 567
2,000 hp (1,490 kW)
-
E6
1939–1942
91 A units, 26 B units
A1A-A1A
EMD 567
2,000 hp (1,490 kW)
-
E7
1945–1949
428 A units, 82 B units
A1A-A1A
EMD 567A
2,000 hp (1,490 kW)
Afternoon Hiawatha 1956.JPG
E8
1949–1954
450 A units, 46 B units
A1A-A1A
EMD 567B
2,250 hp (1,678 kW)
-
E9
1954–1964
100 A units, 44 B units
A1A-A1A
EMD 567C
2,400 hp (1,790 kW)
-

Question: What were the prime movers and power outputs of the E8 and E9 models?
Answer: The E8 had V567B engines (2,250 hp (1.68 MW)), while the E9 had 567C engines (2,400 hp).