1971 Dodge Demon 340 Engine Specifications
In 1971 the Dodge Demon 340 came with only one engine.
For the 1971 Dodge Demon 340, the 340 high performance 4 barrel engine was the standard engine. No other engine options were available.
This article will include the 1971 Dodge Demon 340 engine and its 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.
1971 Dodge Demon 340 Engine Specifications
The 1971 Dodge Demon 340 was available with the following engine.
- 340 4-barrel (Standard)
In 1971 the Dodge Demon 340 was available for the first time. The 340 4 barrel was already produced and available in other models prior to 1971.
1971 was the first year the manufacturers rated horsepower and torque with gross and net ratings. This article includes both.
1971 Dodge Demon 340 With a 340 4-barrel
The 340 4-barrel was available as the standard engine for the 1971 Dodge Demon 340. The engine was available in other car models prior to 1971. This was the first year for the Demon 340.
The engine’s rated horsepower remained the same from the previous year 340 available on other car models but saw a slight decrease in compression.
The engine code was E55. Let’s take a look at the specifications.
| Specifications | 340 4-barrel |
| Displacement | 340 |
| Bore and Stroke | 4.04″ x 3.31″ |
| Horsepower (Gross) Horsepower (Net) | 275 @ 5,000 RPM 235 @ 5,000 RPM |
| Torque (Gross) Torque (Net) | 340 @ 3,200 RPM 310 @ 3,200 RPM |
| Compression Ratio | 10.3:1 |
| Camshaft | High lift, high performance |
| Cam Duration/Overlap | 268°/276°/44° |
| Cam Lift | .429″/.444″ |
| Lifter Type | Hydraulic |
| Valve Diameter, Intake | 2.02″ |
| Valve Diameter, Exhaust | 1.60″ |
| Carburetion | Single Carter 4-bbl |
| Air Cleaner | Unsilenced |
| Exhaust System | Dual, low restriction |
| Fuel Recommended | Premium |
That’s the complete list of engines available for the 1971 Dodge Demon 340. If you have any questions to ask me about the engine options or specifications for the 1971 Demon 340 car model, send us an email found specifically on my contact page or comment below.
About 39 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.
Read More Dodge Demon Articles
1972 Dodge Demon 340 Engine Specifications
Article Resources
- 1971 Dodge Service Manual
- Google Books: Chrysler Engines 1922-1998
