after AMC acquired Kaiser in 1970. American Motors sold the tooling back to General Motors in 1974. The engine was an odd-fire V6, meaning that TDC for the cylinders was not evenly spaced around the engine but grouped in pairs. The engines in Jeeps featured a heavier flywheel than the Buick version to help dampen vibrations resulting from the engine's firing pattern. The engine was known at the time for its power and reliability. It would idle slowly, but not as smooth as other engines, especially the inline sixes. This engine was used in the following vehicles: Jeep CJ-5 Jeep CJ-6 C101 Jeepster Commando various small Buicks from 1960 to 1964 The Modern Era I-6 American Motors designed an entirely new six-cylinder engine for 1964 and introduced the 232 in the new Classic Hardtop as the Typhoon. In 1965 AMC introduced the more economical 199 in the Rambler American. In the 1970s, VAM (See Vehículos Automotores Mexicanos) introduced a 282-cubic-inch version of the engine. American Motors and Chrysler produced the basic design constantly through 2006 (AMC was bought out by Chrysler in late 1987). The early engines' bell pattern differed from AMC V8s. In 1971 AMC raised the block height and lengthened the stroke on the 199 and early 232 engines. The 199 became 232 cubic inches and the 232 became 258. These two RB or "raised block" engines shared the small bell pattern of the earlier engines for only the 1971 model year. In 1972 both the 232 as well as the 258 changed bell pattern to match AMC V8s, in conjunction with AMC's switch from Borg-Warner to Chrysler-built automatic transmissions. General Motors V6 GM 60-Degree LR2 V6 engine This engine was used in: 1984–1986 Jeep Cherokee (XJ) numerous GM vehicles V8 Engines American Motors purchased V8 engines from Packard before introducing its in-house-designed V8. The automaker used these Packard engines exclusively in 1955 and 1956 Nash Ambassadors and Hudson Hornets. The Packard engine was used in 1955, and switched to the version for the 1956 model year. All Packard V8 powered AMCs came with Packard's Ultramatic automatic transmission. Late in 1956, AMC introduced its own V8 design in a version and used it only in the Ambassador and Hornet Special models. The Specials were actually the slightly smaller and lighter Statesman/Wasp two-door hardtop bodies with Ambassador/Hornet trim. The Packard engines were dropped after 1956 in favor of the