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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 ...
A “six-pack” (three two-barrel carburetors) version of the 440 engine was added to the list mid-year. This engine was between the standard engine and the Hemi as a $463 option. The 1969 model year included the base 383 hp (high performance) with the 440 six-pack and 426 Hemi optional. The 440 Magnum (4-bbl) was not available in the Coronet R/T.
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 ]
The location of other major components, such as the distributor, oil filter, and starter, were also kept the same to use the machine tools for the AMC straight-6 engine. [2] According to Jeep's chief engineer, Roy Lunn, "Unlike most engines available today [it] was not designed for passenger cars and then adapted for trucks.
For the Canadian market, the mid-priced big Dodge was marketed as the Polara 440 for 1965 and 1966. This inaccuracy is without question the "440" in Dart 440 is not the engine size, as the 440 cubic inch motor didn't arrive in cars until 1967. 440 however was a trim level. The 440 was available in 1969 in the GTS package however.
By 1979, Chrysler Corporation no longer sold incomplete chassis and ended production of the M series. The M series was available with three engines during its production: The 318 polysphere Chrysler A engine , the 413 cid, and the 440 cid Chrysler RB engine .
Older distributor designs used a cam on the distributor shaft that operates the contact breaker (also called points). Opening the points causes a high induction voltage in the ignition coil. [ 1 ] This design was superseded by an electronically controlled ignition coil with a sensor (usually Hall effect or optical) to control the timing of the ...
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. They were called Polyspheric or Poly engines, because they featured polyspherical-shaped (meaning "more than one sphere") combustion chambers .