The specifications for the 1972 AMC Javelin muscle car included a standard AMC 304-cubic-inch, V-8 or V-6 engine that generated up to 150 horsepower at 4200 rotations per minute. The engine had a compression ratio of 8:4:1 and was fitted with hydraulic valve lifters.
The 1972 AMC Javelin featured unique tail lamps that distinguished it from the 1971 AMC Javelin model. The standard 304 engine generated 245 pounds of torque at 2500 rotations per minute. The engine had a bore and stroke that measured 3.75 and 3.44 inches respectively. The 304 engine was the default engine offered by AMC for versions of the Javelin released between 1972 and 1974.
The 1972 AMC Javelin was available with either the 360 or 401 V-8/AMC engine. A 1972 AMC Javelin fitted with a 360 engine generated up to 220 horsepower and 315 pounds of torque at 4400 and 3100 rotations per minute respectively. The 401 engine variant generated up to 255 horsepower and 345 pounds of torque at 4400 and 3100 rotations per minute. The engine options were available for all AMC Javelin models between 1972 and 1974.
An optional Go package was a popular feature of the 1972 Javelin. It included Cowl-air induction, heavy-duty suspension, Goodyear Polyglas tires, racing stripes and a host of other features.