What engines have powered the Dodge Charger since 1966

The Dodge Charger has used a wide range of engines across its five decades of production, from inline-six and small-block V8s in the original 1966 models to modern HEMI V8s and turbocharged four-cylinders in current versions. The engine you get depends almost entirely on the model year and trim level you're looking at, because Dodge has offered multiple displacement and power options in nearly every generation. Understanding which engine came in which year helps you assess performance, fuel economy, maintenance costs, and parts availability if you own one or are considering buying used.

The Charger nameplate returned in 2006 after a 24-year gap, and since then has been built on the Chrysler LX platform with either V8 or V6 powerplants. The most recent generation, introduced in 2015, standardized the 5.7-liter HEMI V8 across most trims, though a 3.6-liter Pentastar V6 remained available in base models. Dodge discontinued the Charger after the 2024 model year to make room for electric vehicles, so the engine lineup is now fixed rather than evolving.

Key Takeaways

  • Original Chargers (1966–1974) came with inline-six, 318 cubic-inch V8, 383 cubic-inch V8, 440 cubic-inch V8, and 426 Hemi engines depending on model year and buyer choice.
  • Second-generation Chargers (1975–1978) used smaller engines due to emissions regulations and fuel economy concerns, typically 225 cubic-inch sixes and 318 or 360 cubic-inch V8s.
  • Modern Chargers (2006–2024) standardized on the 5.7-liter HEMI V8 producing 370 horsepower in base form, with a 3.6-liter Pentastar V6 available in entry-level trims.
  • The 2015–2024 generation also offered a 6.2-liter supercharged HEMI in the Hellcat and Redeye models, producing 707 and 797 horsepower respectively.
  • Engine choice affects not only acceleration and top speed but also fuel economy, insurance rates, parts cost, and long-term maintenance expenses.

First-generation Chargers and their engine lineup (1966–1974)

The original Dodge Charger launched in 1966 with a 225 cubic-inch slant-six as the base engine, producing 145 horsepower. Buyers could step up to a 318 cubic-inch V8 with 230 horsepower, or choose the 383 cubic-inch V8 with 325 horsepower. By 1968, Dodge introduced the legendary 426 cubic-inch Hemi V8, which produced 425 horsepower in street form and dominated drag racing and NASCAR competition.

The 440 cubic-inch V8 arrived in 1969, offering 375 horsepower in standard tune and 390 horsepower in the high-performance "Magnum" version. This engine became the most common big-block choice for Chargers in the early 1970s because it delivered serious power at a lower price than the 426 Hemi. By 1974, the final year of the first generation, emissions regulations had begun to reduce horsepower ratings across the board, and the 440 was available in 260-horsepower and 280-horsepower versions depending on carburetor and exhaust setup.

Second-generation Chargers and the downsizing era (1975–1978)

The 1975 redesign brought a larger, heavier Charger that faced stricter federal emissions standards and the aftermath of the 1973 oil embargo. The 225 cubic-inch slant-six returned as the base engine, now rated at 95 horsepower. The 318 cubic-inch V8 became the mid-range option at 150 horsepower, and the 360 cubic-inch V8 replaced the 440 as the performance choice, producing 180 horsepower.

These numbers reflected the reality of the mid-1970s: catalytic converters, air injection systems, and lower compression ratios all cut into raw output. The 440 was still available in 1975 but only in the Charger SE, rated at 215 horsepower, and it disappeared after that model year. By 1978, the final year of this generation, the 360 V8 was the largest engine offered, and the Charger had become more of a personal luxury car than a muscle car.

The 24-year gap and return of the modern Charger (2006 onward)

Dodge revived the Charger in 2006 as a four-door sedan built on the Chrysler LX platform, a chassis shared with the Dodge Magnum wagon and Chrysler 300. The base engine was the 2.7-liter V6 producing 178 horsepower, aimed at fleet buyers and budget-conscious consumers. The 3.5-liter V6 with 250 horsepower was the mid-range option, and the 5.7-liter HEMI V8 with 370 horsepower was the performance standard.

The 5.7-liter HEMI became the dominant engine choice for Charger buyers because it offered genuine performance—0 to 60 in the mid-5-second range—without the extreme cost of the supercharged models that arrived later. Fuel economy was around 16 miles per gallon city and 25 highway for the HEMI, acceptable for a 4,000-pound sedan with 370 horsepower. The V6 options were phased out over time, and by 2015 the HEMI was standard on all but the base SE trim.

2015–2024 generation: HEMI standardization and the Hellcat era

The 2015 redesign kept the 5.7-liter HEMI as the core engine but added the 3.6-liter Pentastar V6 to the SE and SXT trims for buyers prioritizing fuel economy. The HEMI remained at 370 horsepower in standard form, though Dodge increased it to 375 horsepower for the 2019 model year. The Pentastar V6 produced 292 horsepower, enough for reasonable acceleration but with better highway mileage—around 28 to 30 miles per gallon compared to the HEMI's 25 to 26.

In 2015, Dodge also introduced the Charger Hellcat, powered by a 6.2-liter supercharged HEMI V8 producing 707 horsepower and 645 pound-feet of torque. This engine could accelerate the Charger from 0 to 60 in under 4 seconds and reach a top speed of 196 miles per hour. In 2019, the Redeye variant arrived with an even more aggressive supercharger tune, pushing output to 797 horsepower. Both versions used an eight-speed automatic transmission and all-wheel drive as standard, and both carried insurance premiums and fuel costs that reflected their extreme performance.

How to identify which engine is in a specific Charger

The easiest way to identify a Charger's engine is to look at the vehicle identification number (VIN), which contains a code for the engine type. For modern Chargers, the eighth character of the VIN indicates the engine: "P" means 3.6-liter Pentastar V6, "M" means 5.7-liter HEMI V8, and "W" means 6.2-liter supercharged HEMI. You can decode your VIN using Dodge's official resources or third-party VIN decoders available online.

The window sticker, or Monroney label, also lists the engine if you have access to it. For used Chargers, the original window sticker is often available through the dealer or sometimes through Carfax reports. The engine size is also printed on the valve cover or intake manifold on most Chargers, though you may need to open the hood and look closely. If you're buying used, asking the seller for the VIN and running it through a decoder takes 30 seconds and removes all guesswork.

Engine performance, efficiency, and maintenance trade-offs

The 3.6-liter Pentastar V6 is the most fuel-efficient Charger engine but also the slowest, with 0 to 60 times around 8 to 9 seconds depending on transmission and model year. It's the right choice if you drive mostly highway miles and want to minimize fuel costs. The 5.7-liter HEMI balances performance and practicality: it's fast enough for most drivers, parts are widely available, and repair costs are moderate because the engine has been in production since 2003.

The 6.2-liter supercharged HEMI is the most expensive to own because fuel economy drops to 13 to 15 miles per gallon, insurance premiums are substantially higher, and supercharger maintenance adds complexity. Supercharger fluid needs to be changed periodically, and if the supercharger fails, repair costs can exceed $3,000. However, if you want the fastest Charger available and can absorb the operating costs, the Hellcat and Redeye engines deliver genuine supercar performance in a four-door sedan.

All modern Charger engines use direct fuel injection and variable valve timing, which means they require top-tier gasoline and regular oil changes to run well. The HEMI engines are known for carbon buildup on the intake valves over time, a common issue that can be addressed with fuel system cleaning or, in severe cases, intake valve cleaning by a technician. Spark plugs typically last 100,000 miles on all three engines.

Frequently Asked Questions

What's the difference between the 5.7-liter HEMI and the 6.2-liter supercharged HEMI?

The 6.2-liter is larger and has a supercharger bolted to it, which forces more air into the engine and produces 337 more horsepower (707 in the Hellcat, 797 in the Redeye) compared to the standard 5.7-liter's 370 horsepower. The supercharged version is also heavier, runs hotter, and requires premium fuel and more frequent maintenance. It's roughly twice as expensive to buy and costs significantly more to insure and operate.

Can I swap a different engine into my Charger?

Engine swaps are possible but expensive and complex. Swapping a 5.7-liter HEMI into an older Charger with a smaller engine requires new engine mounts, fuel system modifications, electrical harness work, and transmission compatibility checks. Most swaps cost $5,000 to $15,000 in labor alone, plus parts. For modern Chargers, swaps are rarely done because the factory engines are already powerful and warranty work becomes impossible.

Which Charger engine is most reliable?

The 5.7-liter HEMI has the longest track record and the most aftermarket support, making it the safest choice for long-term ownership. It's been in production since 2003 and common issues are well-documented and inexpensive to fix. The 3.6-liter Pentastar is also reliable but has fewer performance tuning options. The 6.2-liter supercharged HEMI is reliable when maintained properly but adds complexity with the supercharger system.

What fuel octane should I use in my Charger?

The 3.6-liter Pentastar and standard 5.7-liter HEMI can run on 87-octane regular fuel, though Dodge recommends 89-octane mid-grade for the HEMI to optimize performance. The 6.2-liter supercharged HEMI requires 91-octane premium fuel; using regular fuel will trigger engine knock and reduce power output. Using the correct octane grade protects your engine and ensures you get the horsepower you paid for.

How much horsepower does a Charger lose over time?

A well-maintained Charger engine should not lose significant horsepower over its lifetime. Carbon buildup on intake valves can reduce power by 5 to 10 horsepower if not addressed, and a clogged air filter or worn spark plugs might cost you a few horsepower. Regular maintenance—oil changes, air filter replacement, and fuel system cleaning every 50,000 to 100,000 miles—keeps your engine performing at factory specifications.