The B-body 1968 Plymouth Road Runner is from Plymouth’s first generation Road Runner line which was based on the Belvedere and ran from 1967 to 1970.

1968 Plymouth Rad Runner Specs

By: Laure Justice

1968 Plymouth Road Runner Information

Body Style: The earliest ’68 Road Runners were only offered as a 2-door B-pillared coupe, meaning there was a pillar positioned between the front and rear windows; but later in 1968, Plymouth started to offer a pillarless hardtop model.

Engine: The 1968 Road Runner was offered with a 383 cubic inch displacement (CID) V-8 that had been enhanced with the addition of high-performance 440 Magnum/Super Commando cylinder heads; the one engine option offered on the 1968 Road Runner was the 426 Hemi.

Transmission: The standard package’s transmission for the ’68 Road Runner was a manual four-speed, with different gear ratios for the 383 and the 426 Hemi, but the three-speed TorqueFlite A727 automatic was available as an option; note that the TorqueFlight was a column-shift unit to accommodate the bench seat.

The 1968 Road Runner as a Muscle Car

The 3475-pound total body weight 1968 Road Runner was a muscle car, designed for performance and fun over comfort, with rubber floor mats instead of carpeting and a bench seat.

The Road Runner was built for speed in a time when fuel efficiency wasn’t a major consideration for car buyers and it only got about 10.2 miles per gallon; but what it lacked in fuel efficiency, it made up for in power with a top speed of about 137 miles per hour.

The stock 383 CID/335 hp Road Runner could go from 0-60 miles per hour in 7.1 seconds. from the 383 – 335 hp and 426 Hemi / 425 hp could go from 0-60 in a mere 5.3 seconds.

Plymouth purchased licensing rights for the cartoon’s road runner likeness, name, and beep-beep sound to name and promote this sleek, mid-sized performance car.

Sources:

• Old Ride
• 1968-1970 Plymouth Road Runner brochure
• Hemmings

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