Plymouth GTX 1967-1971


June 12, 2013 By Mike Lee
Last updated on July 31, 2015
Plymouth GTX 440 (1967)
Country
USA
Top Speed (mph)
120
0-60 mph
6 – 6.6
1/4 mile
14.4 – 15.2
BHP
375 @4600rpm
Torque lbft
480 @3200rpm
BHP per ton
233
Engine capacity CC/CU
7210/440
Engine type
V8 Carburettor
Aspiration
Normal
Compression Ratio
10.1:1
Valve Type/No
Overhead 16
Transmission (manual/auto)
Automatic
No of speeds
3
Wheels driven
RWD
Brakes F/R
Drum or Disc/Drum
No. of Seats
4/5
Length (in)
200.5
Width (in)
76.4
Height (in)
54
Kerb Weight (lbs)
3540
Additional Info: The Plymouth Belvedere GTX offered real performance upgrades for Plymouth’s customers, it added exterior enhancements, uprated suspension, a 3 speed auto or 4 speed manual, various rear axle ratios and big block power. Top models were the “Super Commando 440” with 375bhp and the Hemi 426 with 425bhp (0-60 in 4.8. 1/4 mile in 13.5). A special Hemi model was also available to those in the know (RO23) that was stripped and modified for even more performance (only 55 built).

Plymouth Belvedere GTX 1967 Plymouth Belvedere GTX
1967 Plymouth GTX

Plymouth GTX Hemi 426 (1968)
Country
USA
Top Speed (mph)
144
0-60 mph
4.8
1/4 mile
13.2 – 13.5
BHP
425 @5000rpm
Torque lbft
490 @4000rpm
Engine capacity CC/CU
6974/426
Engine type
V8 Carburettors x 2
Aspiration
Normal
Compression Ratio
10.3:1
Valve Type/No
Overhead 16
Transmission (manual/auto)
Automatic
No of speeds
3
Wheels driven
RWD
Brakes F/R
Drum or Disc/Drum
No. of Seats
4/5
Length (in)
202.7
Width (in)
76.4
Height (in)
54.7
Additional Info: The 1968-1970 GTX was redesigned with smoother lines. In 1968 the standard engine was the 440, while the Hemi was still available with 425bhp (above). In 1969 small exterior changes were made and a hurst shifter was made available, also a 440 with 3 x 2 barrel carbs rated at 390bhp was added to the line up (a road test showed a 0-60 of 5.8 and 1/4 mile of 13.7). In 1970 the lines were made even more smoother, engine choices were as 1969.

1969 Plymouth GTX 1969 Plymouth GTX
1969 Plymouth GTX 1970 Plymouth GTX

 

Plymouth GTX 440 (1971)
Country
USA
Top Speed (mph)
N/A
0-60 mph
6.5
1/4 mile
14.9
BHP
370 @4600rpm
Torque lbft
480 @3200rpm
BHP per ton
222
Engine capacity CC/CU
7210/440
Engine type
V8 Carburettor
Aspiration
Normal
Compression Ratio
9.7:1
Valve Type/No
Overhead 16
Transmission (manual/auto)
Automatic
No of speeds
3
Wheels driven
RWD
Brakes F/R
Drum or Disc/Drum
No. of Seats
4/5
Length (in)
203.5
Width (in)
79.1
Height (in)
52.9
Kerb Weight (lbs)
3670
Additional Info: In 1971 the GTX was given a new design again. The 440 (370bhp) was still the standard engine choice, while other options were the 440 +6 (3×2 barrel) now rated at 385bhp and the 426 Hemi still at 425bhp. We believe in 1972 to 1974 the GTX was made an options package with the Road Runner.

1971 Plymouth GTX