1969 Plymouth GTX Engine Options and Specifications
In 1969 the Plymouth GTX could be ordered with two different high performance engine options.
For the 1969 GTX, the 440 High Performance 4 barrel engine was the standard engine. One engine option was available which was the 426 Hemi.
This article will include the 1969 Plymouth GTX engine options and their specifications. This includes the engine code, cost, displacement, horsepower, torque, compression ratio, camshaft, lifter type, valve sizes, bore, stroke, air cleaner, exhaust, fuel and carburetion.
1969 Plymouth GTX Engine Options and Specifications
The 1969 GTX was available with the following two engines.
- 440 High Performance 4-barrel (Standard)
- 426 Hemi (Optional)
The 440 high performance was carried over from the previous year with basically no changes. The 426 Hemi was also carried over had the same rated power numbers as the year before.
1969 GTX With a 440 High Performance 4-barrel
The 440 High Performance 4-barrel was available as the standard engine for the 1969 GTX. The engine code was E86. Let’s take a look at the specifications.
| Specifications | 440 4-barrel |
| Displacement | 440 |
| Bore and Stroke | 4.32″ x 3.75″ |
| Horsepower | 375 @ 4,600 RPM |
| Torque | 480 @ 3,200 RPM |
| Compression Ratio | 10.1:1 |
| Camshaft | High lift, long duration, high overlap |
| Cam Duration/Overlap | 268°/284°/46° |
| Cam Lift | .450″/.458″ |
| Lifter Type | Hydraulic |
| Valve Diameter, Intake | 2.08″ |
| Valve Diameter, Exhaust | 1.74″ |
| Carburetion | Single Carter 4-bbl |
| Air Cleaner | Dual Snorkel |
| Exhaust System | Dual, low restriction |
| Fuel Recommended | Premium |
1969 GTX With a 426 Hemi
The 426 Hemi was available as an option for the 1969 GTX. The engine order code was E74 and cost an extra $700.90. Let’s take a look at the specifications.
| Specifications | 426 Hemi |
| Displacement | 426 |
| Bore and Stroke | 4.25″ x 3.75″ |
| Horsepower | 425 @ 5,000 RPM |
| Torque | 490 @ 4,000 RPM |
| Compression Ratio | 10.25:1 |
| Camshaft | High lift, long duration, high overlap |
| Cam Duration/Overlap | 284°/284°/60° |
| Cam Lift | .490″/.481″ |
| Lifter Type | Mechanical |
| Valve Diameter, Intake | 2.25″ |
| Valve Diameter, Exhaust | 1.94″ |
| Carburetion | Dual Carter 4-bbl |
| Air Cleaner | Unsilenced |
| Exhaust System | Dual, low restriction |
| Fuel Recommended | Premium |
That’s the complete list of engines available for the 1969 Plymouth GTX. If you have any questions to ask me about the engine options or specifications for the 1969 GTX car model, send us an email found specifically on my contact page or comment below.
About 38 years ago I assembled my first Mopar engine, it was for a 1970 ‘Cuda. It’s at that time my hands on experience with Mopar cars and engines, including the 440, started. Although my research of the engines started years earlier.
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Article Resources
- 1969 Plymouth Service Manual
- Google Books: Chrysler Engines 1922-1998
- Wikipedia: Plymouth GTX
