General Motors 122 engine

The 122 engine was designed by Chevrolet and was used in a wide array of General Motors vehicles. The 122 was similar to the first two generations of the General Motors 60° V6 engine; sharing cylinder bore diameters and some parts. The 122 was available in the U.S. beginning in 1982 for the GM J platform compact cars and S-series trucks.

For the J-cars, it evolved through 2002 when it was replaced by GM's Ecotec line of DOHC4-cylinder engines. In the S-10 related models, it evolved through 2003 and was known as the Vortec 2200. Production ceased consistent with the replacement of the S-series trucks with the GMT 355 sub-platform.