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Repair Windows errors before they cause bigger problemsFix Now →Scan for outdated or missing drivers - takes under a minuteDriver Scan →Clear out junk files and repair common Windows errorsFree Scan →Chrysler’s 440 was a 7.2-liter RB-series big-block V8 offered in full-size passenger cars and, later, in performance models. Recognizable examples include the Dodge Polara, Chrysler New Yorker, Dodge Coronet R/T, Plymouth GTX, Road Runner, Super Bee and Challenger—but availability depended on model year, trim and engine option. The 440 Six-Pack (called 6-BBL or Six Barrel by Plymouth) was a particular triple-carburetor version, not a feature of every 440-equipped car.
What cars had a 440 engine?
Chrysler introduced the 440 in its large-car line for 1966. It later offered the engine in performance models, and the 440 also continued in service after the peak muscle-car years. These are representative examples, not a complete year-by-year fitment guide.
Large passenger cars
Early applications named in Thomas Murphy’s historical report for AutoRestorer include the Dodge Polara and Chrysler New Yorker. The 440 was also used across large Chrysler, Dodge and Plymouth cars, according to the Mopar Enthusiast Network summary.
Performance and muscle cars
Murphy identifies the Dodge Coronet R/T and Plymouth GTX among the performance models that received the higher-performance 440 as the engine’s role expanded. Other recognizable 440-equipped examples cited by the Mopar Enthusiast Network include the Dodge Charger, Challenger and Super Bee, and the Plymouth Road Runner and GTX. The exact combinations varied by year and trim; a model name alone does not establish that a particular car came with a 440.
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Later uses
The 440 outlasted the most familiar muscle-car period. The Mopar Enthusiast Network says production continued through 1978 and notes use in trucks and motorhomes as well as passenger cars. The sources reviewed here do not establish a complete list of later vehicle models.
What was the 440 Six-Pack?
The Six-Pack was a 440 configuration with three two-barrel carburetors. Dodge marketed it as the Six-Pack; Plymouth used 6-BBL or Six Barrel. They refer to the triple-carburetor setup, but exact model availability changed from year to year.
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Examples of Six-Pack applications named in Murphy’s AutoRestorer report include the Plymouth Road Runner, Dodge Super Bee, Dodge Challenger, Plymouth ’Cuda and Plymouth GTX. Treat those as examples, not a guarantee that each model offered the setup in every year or trim. The report describes Six-Pack availability as extending as late as 1972; its application list emphasizes performance models from 1969 onward.
440 engine specifications and horsepower
The 440 was an RB-series Chrysler big-block V8; RB is commonly expanded as “raised block.” AutoRestorer describes it as the long-stroke member of the B/RB family. The Mopar Enthusiast Network specification table gives a 4.32-inch bore and 3.75-inch stroke.
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- Compatible with Mopar 273 318 340 360 361 383 400 413 426w 440 engines,small block / big blockMopar (Chrysler, Dodge, Plymouth) water neck
- Package Included: 1x gasket （non-asbestos） 2x Screw （Stainless Steel） 1x Billet Aluminum Water Neck Thermostat Housing
- Product Details: As Shown In The Figure
- Please make sure your model matches the description.We are committed to providing each customer with a higher standard of customer service
| Configuration and context | Horsepower | Torque | Source context |
|---|---|---|---|
| Four-barrel 440, 1970 specification summary | 375 hp | 480 lb-ft | Mopar Enthusiast Network page published in 2020 |
| Four-barrel 440, 1974 specification-table entry | 230 hp | 350 lb-ft | Mopar Enthusiast Network specification table |
| Late 1978 440 | 255 hp net, with accessories attached | 360 lb-ft | Thomas Murphy, AutoRestorer, 1997 |
These figures are tied to different years and configurations, so a single headline horsepower number cannot describe every 440. Rating method matters too: Murphy specifically identifies the late-1978 255-hp figure as net horsepower with accessories attached. When comparing cars, include model year, carburetion and rating convention rather than treating peak-era output as universal.
How long was the 440 produced?
The reviewed references place 440 block years in groups spanning 1966–72 and 1973–78, and the Mopar Enthusiast Network summary says production ended in 1978. The Six-Pack configuration did not last as long as the engine family: Murphy’s 1997 report says, “Although the Six-Pack was available as late as 1972, the 440 carried on through 1978.”
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- 【Product specification】 Overall Size: 23.25" H x 29.5" W | Core Size: 17.5" H x 26" W | Inlet Diameter: 1.5" | Outlet Diameter: 1.75" | Upper Hose Fitting: Pass | Lower Hose Fitting: Driver | Trans Cooler Details: 1/8-27NPT | Mounting Type: Bracket
- 【Vehicle Compatibility】 This radiator is compatible with 1966-1970 Dodge Chrysler 7.2L 440 Engine | Both Automatic and Manual Transmission
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How to verify a 440 in a specific car
If you are evaluating a car for purchase, documenting a restoration or checking a claim that it left the factory with a 440, verify the exact vehicle rather than relying on the model badge.
Quick Recap
Best Value
- Applicable for Dodge for Chrysler Big Block 383 440 Engine
- Package includes: 1 x Alternator Bracket Kit
- Identify the model year and trim. Engine availability could change across years and within a nameplate.
- Determine the configuration. Check whether the claim is for a four-barrel 440 or the triple two-barrel Six-Pack/6-BBL setup.
- Check the engine code and vehicle records. Match the engine code and available vehicle documentation to that specific car. The sources cited here do not establish every model-year combination, so they cannot substitute for year-specific records.
Product prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on Amazon at the time of purchase will apply.
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