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The performance model was the Challenger R/T (Road/Track), with a 383 cu in (6.3 L) "Magnum" V8, rated at 335 hp (250 kW); 300 hp (224 kW) for 1971, due to a drop in compression. 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 convertible.
The Challenger R/T came with a Rallye instrument cluster that included a 150 mph (240 km/h) speedometer, an 8,000 rpm tachometer and an oil pressure gauge.The shaker hood scoop was not available after 1971.