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392 cu in (6.4 L) Chrysler Firepower Hemi in a 1957 Chrysler 300C The Chrysler Marine Hemis were popular in wooden boats such as the Chris-Craft during the 1950s and 1960s. The Chrysler Hemi engine, known by the trademark Hemi or HEMI, refers to a series of high-performance American overhead valve V8 engines built by Chrysler with hemispherical ...
1930–1950: Flathead 8. ... 5.7L Hemi - The smallest modern Hemi engine, ... Chrysler never used this engine in any other vehicle. Cummins
The C-300 was a racecar aimed at the NASCAR circuits that was sold for private ownership to qualify for homologation purposes, with Chrysler's most powerful engine, the OHV 331 cu in (5.4 L) FirePower "Hemi" V8, due to the hemispheric shape of the cylinder head, fitted with dual four barrel carburetors, two overhead valves per cylinder with ...
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 ...
In 1952, DeSoto added the Firedome with its 276-cid V-8 Hemi engine. However, in 1953, DeSoto dropped the Deluxe and Custom names and designated its six-cylinder cars the Powermaster and its V-8 car remained the Firedome. Initially, the 276 cu in (4.5 L) DeSoto "Fire Dome" Hemi engine was installed in the French luxury performance Facel Vega.
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 Polyspheric engines were V8 engines produced by Chrysler from 1955 to 1958 as lower-cost alternatives to its Hemi engines. [1] 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.
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.