How Much Does a 5.7 Hemi Engine Weigh?
The weight of a 5.7L Hemi engine isn't a single, definitive number. Several factors influence its precise mass, making it crucial to understand these variables before providing an answer. This comprehensive guide will delve into the specifics, answering your question and addressing related queries.
The Base Weight: A Starting Point
While precise figures vary depending on the year of manufacture and specific vehicle application, a reasonable estimate for the weight of a bare 5.7L Hemi engine (without accessories) is between 450 and 500 pounds (204-227 kg). This is just a starting point, however, as many components add significant weight.
What Factors Affect the Weight of a 5.7 Hemi Engine?
Several factors contribute to the overall weight of the engine, significantly altering that base weight. Let's explore some key influencers:
1. Accessories: The inclusion of accessories like the alternator, power steering pump, air conditioning compressor, starter motor, intake manifold, and exhaust manifolds adds considerable weight. These components can easily add another 100-150 pounds (45-68 kg).
2. Fluids: The engine oil, coolant, and transmission fluid (if it's a combined unit) all contribute to the overall weight. This adds a relatively small amount, perhaps 10-20 pounds (4.5-9 kg), depending on the fluid levels.
3. Year and Model Variations: Even within the 5.7L Hemi family, slight design changes across different vehicle model years can result in minor weight variations. These differences are usually marginal but can still exist.
4. Engine Mounts and Mounting Hardware: The engine mounts and associated hardware are necessary for installation and contribute to the total weight, although this is usually a relatively small amount.
5. Transmission: If the engine comes attached to its transmission, the combined weight will be substantially higher. The transmission type (automatic vs. manual) and its specific design will affect the additional weight. This could add anywhere from 150 to 300 pounds (68-136 kg) or more.
How Much Does a 5.7 Hemi Engine Weigh with Transmission?
As mentioned above, this is significantly heavier. Without knowing the specific transmission used, it's impossible to give a precise figure. However, a 5.7 Hemi with an automatic transmission could easily weigh between 600 and 800 pounds (272-363 kg) or even more, depending on the factors listed above.
How Can I Find the Exact Weight of My Specific 5.7 Hemi Engine?
The most reliable method to determine the exact weight of your specific 5.7L Hemi engine is to consult your vehicle's owner's manual or the engine's specifications from the manufacturer (Dodge/Chrysler/Ram). This information might not be readily available online, but it should be in the official documentation for your specific vehicle.
In conclusion, while a bare 5.7L Hemi engine weighs approximately 450-500 pounds, the inclusion of accessories, fluids, and especially the transmission, drastically increases the total weight to a range of 600-800 pounds or more. Always consult official documentation for the most accurate weight for your specific engine and application.
