O SD35 Diesel ACL #1009/3.0

Produced from 1964 to 1966, the SD35, along with its four-axle
GP35 sibling, marked both an end and a beginning. They were the last
road diesels to use the EMD 567 motor that had powered switchers,
F-units, and Geeps since 1939 (so named because each cylinder displaced
567 cubic inches). For the horsepower race of the 1960s, EMD tweaked
the 567 to a turbocharged V-16 delivering 2500 hp. That was it for the
567, however, and in 1966 the baton was passed to the more powerful
model 645. But while the “35 line” diesels ushered out an old motor,
they ushered in a new look. Their angled cab roofs and the clean,
squared-off lines of their car bodies established the look of EMD road
power for the next three decades.

In an era when 4-axles diesels were the norm, the six-axle SD version
was intended for lighter track, because its weight was spread out over
more wheels. Those extra wheels were also an advantage in lower-speed
service with heavier loads. While a majority of railroads ordered the
low-nose version, the Southern and Norfolk & Western ordered
SD35s with the high short nose and often ran them long-hood forward for
better crew protection.