The 1970 Challenger R/T came standard with the big block 383 V8, but optional was the big block 440 Magnum and 440+6 (440 Six Pack) V8s. The 440 Six Pack was so called because it added three double-barrel carbs to the standard 440 Magnum. This was good enough to raise horsepower an...
351ci (5.7-liters) in displacement, the powerplant was rated back in its day at 330 horsepower and 370 lb-ft (501 Nm) of torque and ran by means of a 4-speed manual transmission. This particular example, coming...