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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 ...
The "GEN-3" engines were available in Jeep utility vehicles starting in 1971. [3] It is not the same as Chrysler's 360 V8. [ 4 ] Chrysler continued production of the AMC 360 engine after the 1987 buyout of AMC to power the full-size Jeep Wagoneer (SJ) SUV that was produced until 1991. [ 5 ]
The Trenton Engine Plant produced all B and RB Chrysler Big Block V-8 Engines (350, 361, 383, 400, 413, 426 and 440 cu. inch) from their introduction in 1957 until their demise in 1979. In 1988, Chrysler sold much of the machining equipment, as well as a license to the design, to First Auto Works of China .
A narrower range of engines was offered: the base power plant was the 225 cu in (3.7 L) slant-6, now with top-fed hydraulic tappets, and the 318 cu in (5.2 L) and 360 cu in (5.9 L) LA-series V8s. The slant-6 was replaced by the 3.9 L (237 cu in) V6 for 1988; in 1992, it and the V8s became Magnum engines.
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. In 1960 and 1961, Chrysler ...
By contrast, the B-block's were 2.08 in (53 mm) and 1.74 in (44 mm). [ 6 ] Compared to the wedge, the ball-stud block had two additional clean-out holes to remove casting sand, because the large bore made coolant in the water jacket very significant, [ 6 ] and an additional oil drainback hole at either end of the block, due to demand for ...