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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.
After showing off several iterations of the system over the past couple of years, the new sound of Mopar performance is official: the Dodge Charger Daytona EV’s “Fratzonic Chambered Exhaust ...
The 440+6 and 426 Hemi were available, though this would be the last year for them. The tall axle ratios with the 8 3/4-inch Chrysler and Dana 60 rear ends, as well as the wide and close-ratio 4-speed transmissions, could be had with any of the engine choices, though few cars were built with the six-pack or Hemi engines. Aerodynamics were much ...
A hemispherical head ("hemi-head") gives an efficient combustion chamber with minimal heat loss to the head, and allows for two large valves.However, a hemi-head usually allows no more than two valves per cylinder due to the difficulty in arranging the valve gear for four valves at diverging angles, and these large valves are necessarily heavier than those in a multi-valve engine of similar ...
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 Chrysler B and RB engines are a series of big-block V8 gasoline engines introduced in 1958 to replace the Chrysler FirePower (first generation Hemi) engines. The B and RB engines are often referred to as "wedge" engines because they use wedge-shaped combustion chambers; this differentiates them from Chrysler's 426 Hemi big block engines that are typically referred to as "Hemi" or "426 Hemi ...
Forged connecting rods used the Wedge's 3 ⁄ 8 in (9.5 mm) hardware, as opposed to the Hemi's 7 ⁄ 16 in (11.1 mm), but would nonetheless have been considered high-performance parts. [ 1 ] The intake was to be a single Carter ThermoQuad , of greater flow than any previously used, on a dual-plane intake manifold, [ 5 ] while dual four-barrels ...
The 1971 Hemi 'Cuda convertible is now considered one of the most valuable collectible muscle cars. Only thirteen were built, seven of which were sold domestically. The most recent public sale was at the June 2014 Mecum auction in Seattle, where a blue-on-blue 4-speed sold for US$ 3.5 million (plus buyers premium).