The 122 engine was designed by Chevrolet and was used in 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 US 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 GMs Ecotec line of DOHC 4-cylinder engines.