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A 426 Street Wedge block was also available in 1964 and 1965. It bears little relation to the Max Wedge except for basic architecture and dimensions. The Street Wedge was available only in B-body cars (Plymouth and Dodge) and light-duty Dodge D Series trucks. It was an increased-bore version of the standard New Yorker 413 single 4-barrel engine.
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.
Intended to deal with the troubles created by the low-production 426, of which only about 9,000 were built from 1966 to 1972), [4] as well as the different architectures of the higher-volume 383 cu in (6.3 L) and 400 cu in (6.6 L) B and 440 cu in (7.2 L) RB V8s, the ball-stud hemi was to be suitable for high-volume manufacture at low cost while ...
The standard engine was the 440 Magnum, but factory literature described the 426 Hemi as standard. The Charger 500 had the Torqueflite standard and the same equipment standard as the R/T. A total of 392 Charger 500s were made, of which only 67 had the 426 Hemi engine, 27 with a 4-speed, and 40 with an automatic transmission.
The Coronet R/T was available as a two-door hardtop or convertible. The standard engine was Chrysler's largest, the 440 cu in (7.2 L) V8 producing 375 bhp and dubbed the Magnum. The only engine option was the 426-cid Hemi, now in its second year in "Street" trim and again rated at 425 bhp. It was a $908 option.
5.7L Hemi - The smallest modern Hemi engine, called the Eagle, introduced in 2002. 6.1L Hemi - A larger modern Hemi, 2004–2010. ... 1964–1971: Hemi. 426; V10
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 engine was a race-spec 426 Hemi. These motors had a compression ratio of 10.25:1 pistons , bore x stroke 4 + 1 ⁄ 4 in × 3 + 3 ⁄ 4 in (108.0 mm × 95.3 mm) fed through a 2X4-barrel Holley carburetors atop a lightweight crossram aluminum intake manifold rated at 425 hp (431 PS; 317 kW) at 5,000 rpm and a maximum torque of 490 lb⋅ft ...