1932 Harley-Davidson Hillclimber
(left side)
1932 Harley-Davidson Hillclimber
In 1928, H-D authorized the design of an entirely new 45 cubic inch race motor with the hope of regaining their formerly dominant position in American racing.  Harley's new motor, an overhead-valve 45 cataloged as the "DAH," made its debut at a Pittsburgh, Pennsylvania hillclimb in July of 1929.

Installed:  April 12, 1997
Revised:  June 28, 2003