Whether you’re planning an engine swap, building a trailer to haul one, or just curious what’s under the hood of your Ram or Charger, the number matters. So how much does a 5.7 Hemi engine weigh? The bare, undressed engine weighs approximately 485 pounds, and once you add the intake manifold, accessories, and other bolt-on components, a fully dressed 5.7 Hemi typically comes in around 500 to 530 pounds.
How Much Does a 5.7 Hemi Engine Weigh: Bare vs. Dressed
The weight figure you’ll see quoted depends heavily on what’s actually included. Chrysler’s own figures put the bare, long-block 5.7 Hemi at roughly 485 pounds. Once you add the intake manifold, throttle body, accessory brackets, and other bolt-ons, most owners and shops report a fully dressed engine landing somewhere between 500 and 530 pounds, with some builds pushing closer to 600 pounds once you factor in the flywheel, exhaust manifolds, and other accessories that vary by application.
This is a meaningfully lighter engine than what it replaced. Chrysler’s earlier 5.9L Magnum V8 weighed around 560 pounds with accessories, meaning the 5.7 Hemi shaved off roughly 70 to 75 pounds despite offering more power, largely thanks to a more compact deck height and revised casting design.
Where the 5.7 Hemi Is Used
The 5.7L Hemi has been in production since 2003 and shows up across a wide range of Stellantis vehicles, most commonly the Ram 1500, 2500, and 3500, along with various Dodge and Chrysler cars and SUVs over the years, including the Charger, Challenger, Durango, and 300C. If you’re weighing a Challenger build, it’s also worth knowing the correct tire size for older Mopar muscle cars, since a modern 5.7 Hemi swap changes weight distribution in ways that can affect tire load requirements. Engine weight can shift slightly depending on the accessories and exhaust manifolds specific to each application, so the 500 to 530 pound range is a reliable planning figure rather than an exact number for every single vehicle it’s found in.
Why This Weight Matters
Knowing the engine’s approximate weight matters for more than curiosity. If you’re planning an engine swap, it affects what hoist, engine stand, and lifting hardware you’ll need, since a fully dressed 500-plus pound engine is well beyond what most consumer-grade equipment is rated for without careful attention to weight limits. It also matters for anyone doing weight-and-balance calculations on a build, or comparing the 5.7 Hemi’s weight against the automatic transmission’s weight it’s commonly paired with, since the two together represent a substantial chunk of a vehicle’s front-end mass.
Lifting and Handling Safely
An engine this heavy requires a properly rated engine hoist, not a makeshift lifting solution. Most 2-ton (4,000-pound-rated) shop cranes handle a dressed 5.7 Hemi with plenty of margin, but always check your specific hoist’s rating and use appropriately rated lifting chains or straps attached to factory lift points rather than improvised attachment points. The same caution applies to anything else heavy you’re pulling off the car at the same time, right down to knowing the correct lug nut torque spec when you put the wheels back on.
Conclusion
So, how much does a 5.7 Hemi engine weigh? Around 485 pounds bare, and roughly 500 to 530 pounds fully dressed with accessories, lighter than the 5.9L Magnum it replaced despite making more power. Whether you’re planning a swap, a rebuild, or just satisfying curiosity, use a properly rated hoist and lifting hardware for anything in this weight range, and keep a wider car maintenance checklist handy for everything else the build touches along the way.
Frequently Asked Questions
Is the 5.7 Hemi lighter than the 6.4 Hemi?
Yes, the larger displacement 6.4L Hemi is a heavier engine due to its bigger block and internal components, typically weighing more than the 5.7L version, though exact figures vary by dressed accessories.
Does the 5.7 Hemi weigh the same in a Ram truck as in a Charger?
The core engine weight is very similar across applications, but accessories, exhaust manifolds, and mounting brackets can differ slightly between a Ram truck and a Charger or Challenger, causing minor weight variation.
What engine hoist rating do I need to pull a 5.7 Hemi?
A standard 2-ton (4,000-pound) shop crane provides comfortable margin above the roughly 500 to 530 pound dressed weight, though always check your specific hoist’s rated capacity before use.
Why is the 5.7 Hemi lighter than the 5.9 Magnum it replaced?
The 5.7 Hemi uses a more compact deck height and revised block casting design, shaving roughly 70 to 75 pounds off the older 5.9L Magnum’s weight despite the Hemi producing more horsepower.
