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The 277 "Hy-Fire" was the first A-block engine, produced for 1955 in the fall of 1954 and sharing almost nothing but the basic concepts with other engines built by Chrysler. Bore is 3 + 3 ⁄ 4 in (95.3 mm) and stroke is 3 + 1 ⁄ 8 in (79.4 mm; 3.13 in) for a piston displacement of 276.1 cu in (4,525 cc).
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]
Suspension parts were borrowed from the police packages. In 1978 and 1979, the 360 was offered with a four-barrel carb and, for 1979, dual exhaust, bringing power up to 195 hp (145 kW). The standard engine for the 1979 model year was the 225 CID "Slant 6" six-cylinder. For 1980, the 360 was no longer offered, and the 318 was the top engine.
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.
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 ...
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.
Some troops leave the battlefield injured. Others return from war with mental wounds. Yet many of the 2 million Iraq and Afghanistan veterans suffer from a condition the Defense Department refuses to acknowledge: Moral injury.
These engines were based on the Hemi engines, using the same blocks and crankshaft parts, but completely different cylinder heads, pushrods, exhaust manifolds and pistons. They were called Polyspheric or Poly engines, because they featured polyspherical-shaped (meaning "more than one sphere") combustion chambers. These combustion chambers were ...