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The famed 426 Hemi was discontinued for 1972, and only five 440 Six Barrel equipped cars were produced before this engine option was dropped (it was determined the 440 six-packs could not meet the stricter 1972 emissions regulations) in the fall of 1971. The 1971-72 Road Runner sheet metal was used by several NASCAR racing teams for their ...
1971 GTX 440+6 engine in a 1971 Plymouth Road Runner. The B-body was redesigned for 1971 and featured rounded "fuselage" styling with a raked windshield, hidden cowl, and a loop-type front bumper around a deeply inset grille and headlights. This was the final year for the GTX as a stand-alone model.
The 426 Hemi, in "Street Hemi" form, was produced for consumer automobiles from 1966 through 1971. Hemi-powered Dodge and Plymouth cars produced in the model years of 1966 through 1971 have become collector's items. For example, a 1971 Plymouth Barracuda Convertible equipped with the 426 Hemi engine sold at auction for US$3.5 million in 2014. [18]
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Developed specifically for NASCAR racing, the Superbird, a modified Road Runner, was Plymouth's follow-on design to the Charger Daytona fielded by sister company Dodge in the previous season. The Charger 500 version that began the 1969 season was the first American car to be designed aerodynamically using a wind tunnel and computer analysis ...
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 owner of this insane 650 horsepower naturally aspirated Plymouth Roadrunner is living the Mopar dream.
In 1971, compression ratios were reduced in performance engines, except the 426 cu in and the high-performance 440 cu in, to accommodate regular gasoline. 1971 was the last year for the 426 Hemi. Chrysler had plans to continue the 1970 Dodge Challenger T/A for 1971, even publishing advertisements for a 1971 Dodge Challenger T/A.