The Dodge 440 is a 7.2-liter V8, producing up to 390 hp and 490 lb-ft of torque, known for powering iconic muscle cars like the Dodge Charger and Plymouth Road Runner.
The Dodge 440 engine is a legendary powerplant in the muscle car era, known for its exceptional torque and reliability. It was the flagship big-block V8 engine produced by Chrysler from 1966 to 1978, primarily featured in Dodge, Plymouth, and Chrysler vehicles. A part of Chrysler’s RB engine family (Raised Block), the 440 quickly became synonymous with high performance, offering enthusiasts a potent combination of horsepower, displacement, and durability.
This blog post delves into the detailed specifications of the Dodge 440 engine, its history, applications, performance characteristics, and how it stands out among classic muscle car engines. We’ll also answer frequently asked questions about this iconic engine.
Contents
History of the Dodge 440 Engine
The Dodge 440 engine was introduced in 1966 as part of Chrysler’s push to create larger-displacement engines for their full-sized cars and muscle vehicles. The RB (Raised Block) engine family already included a smaller 413 cubic-inch engine, but the 440 was designed to provide even more power for the growing muscle car market of the 1960s and 1970s.
This engine became a staple in some of the most iconic vehicles of the era, including the Dodge Charger, Plymouth Road Runner, and Chrysler New Yorker. The 440 engine powered numerous configurations, from sedans to high-performance drag cars, solidifying its place in automotive history.
The 440 remained in production until 1978, by which time emissions regulations and fuel economy concerns led to the phasing out of large-displacement engines in favor of smaller, more efficient powerplants.
Specifications of the Dodge 440 Engine
Here are the key technical specifications of the Dodge 440 engine, which varied slightly based on the specific model and year of production:
Basic Specs
- Engine Family: Chrysler RB (Raised Block)
- Displacement: 440 cubic inches (7.2 liters)
- Bore and Stroke: 4.32 inches bore x 3.75 inches stroke
- Block Material: Cast iron
- Cylinder Configuration: V8 (90-degree configuration)
- Compression Ratios: Typically ranged from 8.2:1 to 10.3:1, depending on the model and year.
Horsepower Ratings
- Standard 440: 350 to 375 hp (gross) depending on the model and year, typically before emissions controls.
- 440 Magnum (High-Performance Variant): Produced up to 375 hp gross (around 350 hp net in later years) and was a common option in the Dodge Charger R/T and Plymouth GTX.
- 440 Six-Pack: With three two-barrel carburetors (hence the name “Six-Pack”), this version produced 390 hp gross and 490 lb-ft of torque, making it one of the most powerful naturally aspirated engines of its time.
Torque Ratings
- Standard 440: 480 lb-ft of torque at 2,800 RPM.
- 440 Six-Pack: 490 lb-ft of torque, providing massive low-end power.
Fuel Delivery System
- Carburetion: Depending on the model, the 440 featured either a single four-barrel carburetor or, in the case of the “Six-Pack” version, three two-barrel carburetors.
Camshaft and Valvetrain
- Valvetrain Configuration: Overhead valve (OHV), hydraulic lifters.
- Camshaft: The stock 440 engines came with relatively mild camshafts, while performance versions such as the 440 Six-Pack had more aggressive cam profiles for better breathing and higher RPM performance.
Ignition System
- Early models used points-based ignition, while later versions, especially in the 1970s, were fitted with Chrysler’s electronic ignition system, which provided improved reliability and performance.
Exhaust System
- Most 440-equipped vehicles had dual exhaust systems, especially in high-performance models like the Charger R/T and Super Bee.
Performance Characteristics of the Dodge 440
The Dodge 440 engine was known for its broad torque curve, making it ideal for both drag racing and highway cruising. The combination of a relatively large bore and stroke provided strong low-end and mid-range torque, while the robust construction of the RB engine block allowed it to handle high horsepower applications.
440 Magnum
The 440 Magnum was the high-performance version of the 440 engine, often found in Dodge Charger R/Ts and other muscle cars. It featured high-flow cylinder heads, larger valves, and a performance camshaft. This version was rated at 375 hp and 480 lb-ft of torque. The Magnum’s power made it a favorite for street racing and drag racing during its heyday.
440 Six-Pack
For those looking for even more power, Chrysler offered the 440 Six-Pack option, featuring three Holley 2-barrel carburetors. This setup boosted horsepower to 390 and torque to a massive 490 lb-ft. The Six-Pack was ideal for drag racing and was available in select high-performance models like the Dodge Super Bee and Plymouth Road Runner.
Applications of the Dodge 440 Engine
The 440 engine was used in various Chrysler, Dodge, and Plymouth vehicles across multiple categories, from muscle cars to luxury sedans. Here are some of the most notable applications:
- Dodge Charger R/T: The Charger R/T was one of the most famous vehicles to use the 440 Magnum engine, becoming an icon of the muscle car era.
- Plymouth Road Runner: Equipped with the 440 Six-Pack, the Road Runner was a popular choice for drag racers and enthusiasts looking for maximum performance.
- Dodge Super Bee: This budget-friendly muscle car was available with both the 440 Magnum and 440 Six-Pack, offering excellent performance at a lower price point than competitors.
- Chrysler New Yorker: The 440 was also used in luxury vehicles like the New Yorker, where its smooth power delivery provided effortless highway cruising.
- Dodge Coronet R/T: Another vehicle where the 440 was commonly found, providing an affordable yet potent option for muscle car enthusiasts.
Performance Legacy
The Dodge 440 engine holds a special place in automotive history due to its blend of reliability, affordability, and raw power. The 440 Six-Pack, in particular, became a legend on drag strips and the street, capable of outmuscling many competitors of its time.
Even though modern engines have surpassed the 440 in terms of efficiency and performance, the simplicity and robustness of this big-block V8 continue to appeal to collectors, restorers, and hot-rodders. Today, the Dodge 440 is highly sought after in the classic car market, especially in vehicles like the Dodge Charger and Plymouth Road Runner.
Frequently Asked Questions
Here are some FAQs about dodge 440 engine specs –
1. What vehicles came with the Dodge 440 engine?
The Dodge 440 was found in various Chrysler, Dodge, and Plymouth vehicles from the mid-1960s to the late 1970s. It powered performance models like the Dodge Charger R/T, Plymouth Road Runner, Dodge Super Bee, and even luxury cars like the Chrysler New Yorker.
2. What is the difference between the 440 Magnum and the 440 Six-Pack?
The 440 Magnum was the high-performance version of the 440 engine, offering up to 375 hp. The 440 Six-Pack was a more powerful variant with three two-barrel carburetors, producing 390 hp and 490 lb-ft of torque, making it one of the highest-performing engines of its time.
3. How much horsepower can a stock Dodge 440 engine produce?
Depending on the version, the stock Dodge 440 engine could produce anywhere from 350 hp to 390 hp (gross ratings). Net horsepower, after accounting for emissions controls and other factors, was lower in later years.
4. Can a Dodge 440 engine be modified for more power?
Yes, the 440 engine is popular among enthusiasts for modification. Performance upgrades such as high-flow cylinder heads, aftermarket camshafts, headers, and modern electronic fuel injection (EFI) systems can significantly boost power beyond its original specs.
5. Is the Dodge 440 engine reliable?
The Dodge 440 engine is known for its reliability, especially in stock or mildly modified forms. Its cast-iron construction and simple design make it a durable and long-lasting engine when properly maintained.
Conclusion
The Dodge 440 engine remains one of the most celebrated powerplants of the muscle car era, revered for its massive torque, high horsepower, and mechanical simplicity. Whether you’re a muscle car enthusiast, a classic car collector, or someone interested in raw automotive power, the Dodge 440 continues to stand out as an iconic symbol of American automotive performance.