The 1971 Yankee 400 was a NASCAR Winston Cup Series race that took place at Michigan International Speedway on August 15, 1971.

[3] Michigan International Speedway is a four-turn superspeedway that is 2 miles (3.2 km) long.

There were 26,000 fans in attendance for this two hour, forty minute race in Brooklyn, Michigan[2] There were two cautions for twelve laps and the victory margin was three seconds.

[2] Manufacturers involved in this race included Mercury, Ford, Dodge, Chevrolet, and Plymouth.

[2] Bill Seifert's vehicle had a troublesome fuel pump on lap 110; forcing his early exit from the race.