What engine is in a 1977 Dodge Power Wagon?
The 1977 Dodge Power Wagon primarily used a 360 cubic inch V8 as the standard engine, with an optional 400 cubic inch big-block available in certain configurations.
In 1977, the Dodge Power Wagon was Dodge’s rugged, off-road-oriented variant of the W-series pickup. The lineup centered on durability and torque for heavy workloads, with the 360 V8 serving as the workhorse for most trucks. A smaller subset of Power Wagons could be ordered with a larger 400 cubic inch V8 to deliver extra displacement and pulling power. Transmission choices typically included a three-speed manual or a TorqueFlite automatic, depending on the build. For collectors or restorers, engine identification via the VIN or engine code is important, as some trucks may have had engine swaps over the years.
Engine options in 1977 Power Wagon
The following engine options were offered for the 1977 Power Wagon, reflecting the two primary factory displacements available.
- 360 cubic inch V8 (5.9 liters) — standard engine for most 1977 Power Wagons, known for reliable torque in off-road use.
- 400 cubic inch V8 (6.6 liters) — optional big-block upgrade for buyers needing more displacement and pulling power.
Conclusion: While the 360 V8 was by far the most common engine in 1977 Power Wagons, a minority left the factory with the larger 400 V8 option, making engine verification important for buyers and restorers.
Context for restoration and verification
To confirm the exact engine in a given vehicle, check the engine code stamped on the block, along with the VIN and trim or fender tag. Market variations and dealer-installed options can lead to discrepancies over time, so documentation helps ensure authenticity for collectors.
Summary
In short, the 1977 Dodge Power Wagon predominantly used a 360 cubic inch V8, with an optional 400 cubic inch big-block available on select configurations. This combination reflects the model’s purpose as a rugged, work-ready truck of the era, and precise documentation is key for accurate restoration or valuation.
What engine came in the 1978 Dodge Power Wagon?
Within an unrestored and original engine bay sits a 318ci V8. It has a 2-barrel carburetor on top, and an NP435 transmission on the back. A Dana 44 front axle, and a 9-3/4 rear axle are noted for the 4x4 drive.
How much is a 1977 Dodge D200 worth?
Protect your 1977 Dodge D200 from the unexpected.
The value of a 1977 Dodge D200 3/4 Ton can vary greatly depending on its condition, mileage, options, and history. Typically, you can expect to pay around $12,220 for a 1977 Dodge D200 3/4 Ton in good condition with average spec.
What is so special about the Dodge Power Wagon?
Special features of the Power Wagon include: Electronically controlled locking differentials (front and rear) Electronically disconnecting front sway bar. Integrated 12,000 lb electric Warn winch.
What engine did the Dodge Power Wagon have?
The Ram Power Wagon is powered by a 6.4-liter HEMI® V-8 gas engine, which produces 410 horsepower and 429 lb-ft of torque. This engine has been standard since the 2014 model year, replacing the 5.7-liter HEMI V-8 that was used previously. The engine is paired with an eight-speed automatic transmission and a heavy-duty 4x4 drivetrain to provide performance both on and off-road.
You can watch this video to learn more about the Power Wagon's engine and its performance: 59sBen HardyYouTube · Aug 22, 2025
- Current Engine: 6.4-liter HEMI V-8
- Horsepower: 410 hp
- Torque: 429 lb-ft
- Transmission: 8-speed automatic
- Previous Engine: 5.7-liter HEMI V-8 (used from 2005-2013)
