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Chrysler developed its first experimental hemi engine for the Republic P-47 Thunderbolt fighter aircraft. The XIV-2220 was an inverted V16 rated at 2,500 hp (1,860 kW). The P-47 was already in production with a Pratt & Whitney radial engine when the XIV-2220 flew successfully in trials in 1945 as a possible upgrade, but the war was winding down and it did not go into production.
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.
The 2014 Ram Power Wagon underwent extensive changes. Starting with 2014 models, the Power Wagon comes standard with the new, larger 6.4L Hemi V8. The transmission and transfer case remain unchanged, but the axle ratio changes from 4.56:1 gear ratio to 4:10 gear ratios. The rear axle is exchanged for the larger 11.5 AAM axle.
Flat-four engines typically use a firing order of R1-R2-L1-L2. Straight-five engines typically use a firing order of 1-2-4-5-3, in order to minimise the primary vibration from the rocking couple. Straight-six engines typically use a firing order of 1-5-3-6-2-4, which results in perfect primary and secondary balance. However, a firing order of 1 ...
The Hemi-6 is a pushrod O.H.V. (overhead valve engine), with combustion chambers comprising about 35% of the top of the globe. This creates what is known as a low hemispherical shaped chamber. In this way, the "Hemi" moniker was used for the same kind of marketing cachet as Chrysler's 1950s-1970s Hemi V8 engines .
The 400 cu in (6.6 L) B engine was introduced in 1972 to replace the venerable 383, and were power-rated via the net (installed) method. Chrysler increased the bore size of the 383 to create the 400. Its bore of 4.342-inch (110.3 mm) was the largest used in any production Chrysler V8 at the date of its introduction.
The only available engine was the 413 cu in (6.8 L) ram-induction V8, with an increase of 10 hp (7.5 kW) from 1962; this temporarily re-established the practice of the top-spec engine being standard on the letter series. The redesigned, otherwise low-key interior featured an oddly squared steering wheel, shared with all Chrysler products for ...
2013–2024 Ram 1500 (5.7L V8, 3.0L V6 diesel) 2014–2024 Dodge Durango V8 Retail; 2015–2023 Dodge Charger (5.7L & 6.4L V8) 2021–2023 Dodge Charger Pursuit RWD V8 (LD) 2015–2023 Dodge Challenger (5.7L & 6.4L V8) 2014–2021 Jeep Grand Cherokee (WK2) (5.7L & 6.4L V8, 3.0L V6 diesel) 2015–2023 Chrysler 300 V8; 8HP90