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By canting the angle of the NASCAR-mandated two valves per cylinder, significantly larger valves could be used. Both the Chrysler 426 Hemi and all Chrysler RB engines were oversquare, with the 426 Hemi and 426 Wedge sharing a 4 + 1 ⁄ 4 in × 3 + 3 ⁄ 4 in (108.0 mm × 95.3 mm) bore and stroke. Blocks for the 426 Hemi were stress relieved at ...
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 ...
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.
Chrysler built three Spitfire engines: the 331 Poly, 354 Poly, and the all-new 301 Poly, which did not have a Hemi version. They were introduced for 1955 in the low-priced Chrysler Saratoga and Windsor models and used through 1958. All Chrysler Spitfire engines were low deck; no Poly version of the raised deck 392 Hemi engine was produced.
Pages in category "Chrysler engines" The following 37 pages are in this category, out of 37 total. ... Chrysler Hemi-6 Engine; Chrysler IV-2220; Chrysler turbine engines;
Chrysler used a 14 mm (0.55 in) spark plug, rather than the typical 18 mm (0.71 in), in an effort to fit it as centrally as possible in the combustion chamber. [ 1 ] The intake and exhaust valves were the same size as the 426's, [ 6 ] the 2.25 in (57 mm) intake canted at 15° from the bore centerline, the 1.94 in (49 mm) exhaust at 6°. [ 6 ]