The Plymouth GTX touched base on the muscle auto scene in 1967 as Plymouth’s not kidding contender, a speedster rendition of the square Belvedere, with a Hemi V-8 alternative. Base engine in the GTX was the 375-hp, Super Commando 440-cid V-8, fit for 0-60 mph in 6.8 seconds, with a quarter-mile time of 14.6 seconds and a top speed of 121 mph. Also, that was the point at which the auto was furnished with a programmed transmission and not a discretionary 4-speed.
The Plymouth GTX turned into somewhat curvier in 1968, and its position as an extravagance dragster was fortified with Plymouth’s presentation of the more moderate and essential Road Runner. Motor decisions stayed unaltered from the earlier year and proceeded with that route through 1969. Drag test demonstrated that the 440-cid Super Commando V-8 drove the 426-cid road Hemi for the principal eighth of a mile, until the Hemi came “on the cam” and won by around two auto lengths. With a 4.10 back pivot a 440 engine, the GTX could turn 0-60 mph in 5.8 seconds and a quarter-mile in 13.7 seconds at 102.8 mph. Outside changes in 1969 were negligible with only another grille and taillights.
The car in use Dom in Fast Furious Movies 8 2017 looks very handsome and sporty, though completely redesigned for 1971, this was the final year for the GTX as a stand-alone model. Engine choices were 440 four-barrel, 440 with three two-barrels (Six Barrel), and 426 Hemi. Emission restrictions such as lower compression ratios and faster-acting choke operation lowered the base 440 output by 5 hp (3.7 kW), to 370 hp (280 kW). The 440 Six Barrel was down to 385 hp (287 kW), but the Hemi was still rated at 425 hp (317 kW). Due partly to rising insurance rates on muscle cars, sales were low. There were less than 3000 units produced in ’71. For 1972 through 1974, any Road Runner ordered with the optional 440 was renamed Road Runner GTX and included the badging of both previous models.