The 1965 Mustang (August 1964 onward) used the 200 Thriftpower Six engine as standard, rated at 120 hp. The Mustang continued to use the 200 as its base engine until it was dropped in 1971. Starting in 1966, a six-bolt bellhousing flange block was introduced. Beginning in 1980, the block was redesigned with a bell housing flange and a low-mount starter very similar to the small-block Ford V8. In the sixties, the Thriftpower Six was a good choice for a daily driver but was always overshadowed by the V-8 engine. Also known as the Ford 200 Cubic Inch 6 Cylinder Engine.