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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 ...
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.
The standard transmission was a 3-speed manual. Optional R/T engines were the 375 hp (280 kW) 440 cu in (7.2 L) Magnum, the 390 hp (291 kW) 440 cu in (7.2 L) Six-Pack and the 426 cu in (7.0 L) Hemi rated at 425 hp (431 PS; 317 kW) at 5,000 rpm and 490 lb⋅ft (664 N⋅m) of torque at 4,000 rpm. The R/T was available in either the hardtop or ...
Horsepower was recorded at 490 base horsepower. When swapped with the hemispherical heads, the engine immediately produced 550 horsepower. [1] Hoover's design won the 1964 Daytona 500. The engine was then banned by NASCAR. Most NHRA vehicles are still powered by the basic blueprint of the 426 Hemi. [2] Tom Hoover died on April 30, 2015, at the ...
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.
In 1958, Chrysler introduced its new wedge-head B Block engine, which was implemented in the Dodge and DeSoto lines. The following year saw the introduction of the RB Block in Chryslers and Imperials ; this was a modified B Block with a raised deck resulting in an increase of stroke from 3.18 inches to 3.75 inches.
This option fell half-way between the standard engine and the Hemi as a US$463 option. The 1969 model year included the base 383 Magnum, 440 Six Pack, and the 426 Hemi. The 440 Magnum (4bbl) was reserved for the Coronet R/T. 1969 Dodge Coronet Super Bee A12 "Six-Pack 1970 Dodge Super Bee in Vitamin C Orange
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 ...