The Chevrolet 153 cu in engine was an inline-four engine designed in the early 1960s for use in the Chevy II. It is a four-cylinder variant of the third generation Chevrolet straight-six. After 1970 GM ceased production of the 153 engine in North America because of low demand (and the inline-six was thereafter made the base engine in the Nova), but the engine continued to be used in cars in other markets around the world, notably South Africa and Brazil. The engine was also standard equipment in the Jeep DJ-5A—used by the United States Postal Service—until American Motors bought Kaiser Jeep in 1970 and replaced the engine with the AMC straight-six in the DJ-5B. Currently descendants of the 153 engine are used in industrial (e.g. forklifts and generators) and marine applications. The 153 en