|
This
Windsor, Ontario built 90° V8 was introduced in 1962 as a 221 cubic inch
engine. It was Ford's first modern lightweight small-block replacing
the old Y-block. In 1963 the small block displacement was bumped up to
260 and 289.
The change was increase
cylinder bores on early 221's from 3.5" to 3.8" on the 260 and the later
standardization to 4" bores on later engines. The 289 was also fitted
with larger valves than found in the earlier small blocks. The photo
the right shows a 1966 289-4V sitting smartly in the engine bay of the
same year Mustang.
Through the years, not all
small-block Windsor's were produced solely at the Ontario plant, but the
name stuck with the engine. The photo next right, shows the Windsor,
Ontario engine plant during production.
In 1962-63 the gross
horsepower rating of the 221 was only 145HP. With the introduction of
289 in 1963, horsepower jumped to 195HP with a 2-barrel carburetor and
225HP with the 4-barrel. The 289HP pushed horsepower ratings to 271HP in
1965 which required the engine to be fitted with many heavy-duty factory
parts. The 289HP has different cylinder heads from those of the
standard 289. The 289HP heads have bigger valves and smaller combustion
chambers.
Carol Shelby used the 289HP
as the base for his GT350. The Shelby's were rated at 306 HP by using a
larger carburetor, high-rise intake and less restrictive exhaust. In
1966, High-Performance Models of the Mustang were also fitted with 289HP
engines as an option. |
