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What size engine is in the 1977 Dodge Monaco?

In short, the 1977 Dodge Monaco offered multiple V8 options, with the 360 cubic inch (5.9-liter) V8 serving as a common base engine and a 400 cubic inch (6.6-liter) V8 available as an upgrade on higher-trim configurations.


The 1977 Dodge Monaco was a full-size rear-wheel-drive model built on Chrysler’s B-body platform. During the late 1970s, engine choices for Dodge’s luxury full-size cars evolved due to tightening emissions standards and shifting market demands. Buyers could choose between two primary V8 options, depending on trim level and optional equipment, with the goal of balancing performance and fuel economy for the era.


Engine options for the 1977 Monaco


Below are the engine options that were typically offered for the 1977 Monaco. The exact configuration could vary by body style, trim, and regional market, so the factory sticker or VIN would confirm the precise engine in any given car.



  • 360 cubic inch V8 (5.9 L) — commonly the base V8 in many Monaco models, often paired with a 3-speed or TorqueFlite automatic transmission and configured with 2- or 4-barrel carburetion depending on the exact package.

  • 400 cubic inch V8 (6.6 L) — available as an upgrade on select trims and option packages, typically configured with a larger carburetor and geared toward more torque for highway driving.


It’s important to note that emission controls from the era affected horsepower and output across all engines, and not every Monaco had every engine option available. The precise engine count for a given car depended on its specific build sheet and regional offerings.


Additional notes


For collectors or restorers, always verify the engine size via the vehicle’s build sheet, window sticker, or data plate. Mopar’s mid-to-late 1970s full-size models saw variations in available engines based on federal mandates, optional equipment, and marketing strategy for different regions.


Summary


The 1977 Dodge Monaco primarily used a 360 cu in V8 as the standard engine, with a 400 cu in V8 available as an upgrade on certain trims and packages. The exact engine in any given Monaco depended on the specific model, options, and market.

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Kevin Bennett

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Kevin Bennet is the founder and owner of Kevin's Autos, a leading automotive service provider in Australia. With a deep commitment to customer satisfaction and years of industry expertise, Kevin uses his blog to answer the most common questions posed by his customers. From maintenance tips to troubleshooting advice, Kevin's articles are designed to empower drivers with the knowledge they need to keep their vehicles running smoothly and safely.