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This was the first new V8 engine for Chrysler since the 1960s. [2] The companion V6 was basically the V8 with two fewer cylinders, another concept that originated at AMC before the company joined Chrysler. [3] These new engines had nothing in common with the Chrysler A engine V8s, nor the Jeep 4.0 L "PowerTech" I6 engine. A 4.7 L V8 came first ...
It is not the same as Chrysler's 360 V8. [4] Chrysler continued production of the AMC 360 engine after the 1987 buyout of AMC to power the full-size Jeep Wagoneer (SJ) SUV that was produced until 1991. [5] It was one of the last carbureted car/truck engines built in North America. [6] Chrysler never used this engine in any other vehicle.
The hemispherical head design was revived in 1964 for the now-famed 426 Hemi, a big-block, overhead valve 426 cu in (7.0 L) V8. The first engine called "Hemi" by Chrysler, [b] the 426 was nicknamed the "elephant engine" at the time, a reference to its high power, heavy weight, and large physical dimensions. [17]
In the mid-1960s, Chrysler decided to adapt the 318 cu in (5.2 L) small block V8 into a lightweight, high output engine equally suited for drag strip or street performance use. Its block was bored out to 4.04 in (102.6 mm) but its 3.31 in (84.1 mm) stroke left unchanged, resulting in the 340 cu in (5.6 L) engine introduced for the 1968 model year.
The two heavy pushrod V8 engines were replaced by Chrysler's then-new PowerTech. The new V8 engine produced less torque than the old pushrods, but was lighter, offered better fuel economy, and provided similar on road performance figures (the 23-gallon fuel tank was replaced with one of a 20.5-gallon capacity). The Inline 6 engine was also ...
Chrysler has used the PowerTech name on the following engines: The 2.4 L Chrysler Neon engine I4 engine; The 2.5 L AMC straight-4 engine I4 engine; The 3.7 L Chrysler PowerTech engine V6 engine; The 4.0 L AMC Straight 6 engine I6 engine; The 4.7 L Chrysler PowerTech engine V8 engine
Although, the problems were solved quite quickly and the engine was relaunched as the R6 Mk2, with a reduced rating of 104 bhp at 2,500 rpm. Sales never recovered after the early problems and only 33,800 engines were built before production ended in 1962. [10] none: S6: 1939–05 to 1962-10: Six-cylinder, 377 cu. in. (7.4 L) diesel engine.
Although the engine is an outgrowth of the Gen-2 V8, these changes cause it to be regarded as the third generation of AMC V8, or "Gen-3". The stroke and deck height on the 290 and 343 were increased by 0.16 in (4.06 mm) on both engines, becoming the 304 cu in (5.0 L) and 360 cu in (5.9 L), respectively.