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The Chrysler A engine is an OHV small-block V8 gasoline engine built by Chrysler from 1956 until 1967. It featured polyspherical combustion chambers , and was offered in displacements from 276.1 cu in (4.5 L) to 325.2 cu in (5.3 L), and in various high-power configurations.
The "LA" and "A" production overlapped from 1964–1966 in the U.S. and through 1967 in export vehicles when the "A" 318 engine was phased out. [3] The basic design of the LA engine would go unchanged through the development of the "Magnum" upgrade (1992–1993), and continue into the 2000s with changes to enhance power and efficiency. [2]
318; 360; 1999–2009: PowerTech. 2003–present: Hemi. 5.7L Hemi - The smallest modern Hemi engine, called the Eagle, introduced in 2002. 6.1L Hemi - A larger modern Hemi, 2004–2010. 6.4L Hemi - A larger bore modern Hemi engine, called the Apache, introduced in 2011. 6.2L Hemi - A supercharged Hemi engine, called the Hellcat, introduced in 2014.
A narrower range of engines was offered: the base power plant was the 225 cu in (3.7 L) slant-6, now with top-fed hydraulic tappets, and the 318 cu in (5.2 L) and 360 cu in (5.9 L) LA-series V8s. The slant-6 was replaced by the 3.9 L (237 cu in) V6 for 1988; in 1992, it and the V8s became Magnum engines.
In 1968, the 273 was replaced by the 318 cu in (5.2 L) LA engine as the smallest V8 available, and the new 340 cu in (5.6 L) LA four-barrel was released. The 383 Super Commando engine was upgraded with the intake manifold, camshaft, and cylinder heads from the Road Runner and Super Bee , but the more restrictive exhaust manifolds specific to ...
In 1988, the 4.0 received higher flowing fuel injectors, raising output to 177 hp (132 kW; 179 PS) and 224 lb⋅ft (304 N⋅m) — more power than some configurations of the Ford 302, Chevrolet 305, and Chrysler 318 V8 engines, and more than any of the Japanese 6-cylinder truck engines, but with comparable or superior fuel economy.
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 320 cu in (5.2 L) engine was used in 1955, and switched to the 352 cu in (5.8 L) version for the 1956 model year.
Being nearly identical, it too has the distinctive odd-sided hexagonal shape. These engines can be fitted in rear wheel drive vehicles with the right bellhousing and are used in hot rods, kit cars, sand rails and late model engine swaps. All Cadillac Northstar V8s; Oldsmobile Aurora L47 V8; GM 3.5L LX5 "Short Star" V6