General Motors 122 engine

The General Motors 122 engine is a pushrod straight-four designed by Chevrolet and used across a wide range of General Motors vehicles. It reached American buyers in 1982 in the J platform compact cars and the S-series trucks, and it grew from the original 1.8 litre L46 to 2.0 litre and then 2.2 litre versions, moving from a two-barrel carburettor through throttle-body injection to multi-point and sequential fuel injection. In the trucks it was sold as the Vortec 2200 and built at the Tonawanda plant near Buffalo. Production ended with the J cars in 2002 and the S-series trucks in 2003, when the DOHC Ecotec took over. The article describes it as simple, reliable and easy to maintain, and notes that it shares bore diameters and some parts with the first two generations of the General Motors 60 degree V6.