5.7 Hemi vs 5.3 Vortec | 15 Core Differences In (2024)

The new Dodge Charger offers a choice between two engines. The base Charger has a 5.7-litre V8 producing 292 horsepower and 295 lbf of torque that comes paired with an 8-speed automatic transmission in all but the R/T variant. If you can’t live without your V8, the Charger SRT Hellcat is available with a supercharged 6.2-litre V8 making 707 horsepower and 650 lbf of torque paired to an 8-speed automatic transmission. Both engine options are vastly different, and we’ll look at the differences so you can make the right choice for yourself. Here is the guide on 5.7 Hemi vs 5.3 Vortec.

The following review will highlight both engine options’ overview and their differences and comparisons against other rivals in the segment like the Ford Mustang, Chevrolet Camaro SS, Hyundai Genesis Coupe 3.8, and Subaru BRZ.

5.7 Hemi vs 5.3 Vortec | Tabular Differences

Feature	5.7 Hemi	5.3 Vortec
Displacement	5.7 liters	5.3 liters
Cylinder Configuration	V8	V8
Horsepower	Varies based on the model, typically around 355 HP	Yes, depending on the model (MDS technology)
Torque	Varies, often above 400 lb-ft	Varies, often around 383 lb-ft
Fuel Injection System	Multi-point fuel injection	Sequential fuel injection
Compression Ratio	Varies	Varies
Fuel Efficiency	Generally lower than the 5.3 Vortec	Generally higher than the 5.7 Hemi
Cylinder Deactivation	Yes, depending on model (MDS technology)	Yes (Active Fuel Management)
Transmission Compatibility	Compatible with various transmissions	Compatible with various transmissions
Performance Upgrades	Wide range of aftermarket support	Aftermarket support available
Applications	Commonly found in Dodge/Chrysler vehicles	Commonly found in GM vehicles
Weight	May be heavier than the 5.3 Vortec	May be lighter than the 5.7 Hemi
Towing Capacity	Competitive towing capacity	Competitive towing capacity
Reliability	Generally considered reliable	Generally considered reliable
Maintenance Cost	Costs may vary, depending on the model	Costs may vary, depending on the model
Technology Features	May have advanced features in newer models	Equipped with modern technology in newer models
Emissions Compliance	Complies with emission standards	Complies with emission standards
Availability	Widely available in Dodge/Chrysler vehicles	Commonly found in GM vehicles

5.7 Hemi Overview

The Hemi engine family originally gave the 5.7-liter Hemi engine a fresh start. The Hemi engine was originally available from the 1950s until the 1970s, but the 5.7L Hemi marked its return to the market.

The combustion chamber and cylinder heads were built, giving rise to the so-called Hemi. Less heat is lost due to inefficient combustion attributed to the semicircular shape. Even while other manufacturers also employ the Hemi design or a smaller derivative, the marketing designation Hemi only applies to an engine made by Chrysler.

It was originally manufactured primarily for NASCAR racing purposes but was later made available in road cars. The customer cars this engine was available were mainly Dodge and Plymouth cars.

Before Dodge, it was available for the Coronet, Charger, Dart, Super Bee and Challenger.

Overview 5.3 Vortec

5.3 Vortec, also called LM7, has been implemented in many cars. The engine has been fitted and moved many vehicles from trucks, tractors, and trucks to performance cars such as the Chivvies and Corvette.

The 5.3-liter Vortec engine was originally designed and manufactured by General Motors in the new heavy-duty automotive industry. The small block of aluminum frames the engine with V8 maneuvers. After the success of this particular model, many other LS engines were designed after the 5.3-litre engine.

The 5.3L series originally had nine varieties, divided into Gen III and Gen IV subcategories. While performance and performance are similar, there are still fundamental differences between generations, such as differences in fuel economy and efficiency and other parameters.

It produces 270 horsepower and 315 lb-ft. of torque. Before the Gen III engine design was phased out from the 5.3-liter Vortec, the L33, sold as a high-performance version, reached 310 horsepower and 335 lb-ft. Of torque.

5.3 L Vortec is a long-standing motorcycle that is constantly gaining in popularity. This engine is available in many applications for larger SUVs and trucks, and many comments on the service life have been recorded so far.

The performance does not match the performance of the closely matched engines in the LS family. The engine is designed for trucks and SUVs, focusing on heavier weight than LS engines. Some engine variants can be supplied with an aluminum head and block, but many still use a cast iron block, especially in large trucks.

Common Questions

How powerful is the Ford Vortec engine?

However, the Vortec was a powerful engine with excellent power producing 255 horsepower at one rpm and torque of 4600 and 330 feet/pound. The maximum and minimum compression ratio was somewhere between 9.4 and 1.

Which engine is better, 5.3 or 5.7 Hemi?

The 5.7-liter Hemi V8 in the Ram is better on paper than the 5.3-liter V8 in the Chevy. The Hemi has 395 horsepower and 410 lb-ft. of torque, while the comparable and affordable Chevy V8 provides 355 horsepower and 383 lb-ft. of torque.

Do Hemi engines need premium gas?

If you have a HEMI V8 engine, you must use the 89-octane number. If you have a basic V6 engine, then it is ok to use 87. Never use a value higher than 89

Is the Vortec 5.3 a good bike?

The 5.3L V8 Vortec 5300 is considered an extremely reliable engine. Many motor vehicle owners report that the engine has traveled up to 220,000 miles with minimal problems.

How much horsepower can Vortec earn?

Atmospheric 5.3 L eventually produced 503 horsepower at 6600 rpm and torque 441 lb-ft.at 5700 rpm.

Expert Opinion

On paper, the 5.7-liter Hemi V8 in the Ram is better than the 5.3-liter V8 in the Chevy. The Hemi makes 395 hp and 410 lb-ft. of torque, while the Chevy’s similarly sized and priced V8 makes 355 hp and 383 lb-ft. of torque”.