What Is a HEMI® Engine?

When you see the name HEMI® on some of the models for sale at Sid Dillon, you might wonder what a HEMI® engine is. A HEMI® engine is a world-class powerplant under the hood of select models on our lots. They deliver more power and torque than traditional engines like a V6 or V8. Read our guide to the benefits of a HEMI® engine to learn more. We’ll also tell you about what the difference is between a HEMI® and a V8 so you can determine which performance specs you favor.

What Is the Difference Between a HEMI® and a V8?

First, you might be surprised to learn that the HEMI® engine is not a new invention. It was invented by Chrysler back in the 1950s when engineers were trying to minimize heat loss in the engines at the time. They designed the HEMI® engine to improve the design of traditional powerplants.

The name HEMI® comes from the word “hemispherical,” which describes the shape of the combustion chamber. The hemisphere in each combustion chamber allows it to generate more power for each cylinder, giving your vehicle an extra boost.

At the time the HEMI® engine was invented, vehicles were mainly equipped with flathead engines. With a flathead engine, there’s far more surface area that loses heat, which reduces the power. HEMI® engines, on the other hand, pack this punch of extra power with their innovative design. So, the main difference between a HEMI® and a V8 revolves around the shape of the cylinder heads. Another main difference is the placement of spark plugs on the top-center of the combustion chamber rather than slightly off-center in V8 engines.

What are the Benefits of HEMI® Engine?

The benefits of a HEMI® engine are so much more than an improved design. What is a HEMI® engine going to bring to your driving experience? From more performance to reliability, you have a lot to look forward to: 

• Serious Performance: HEMI® engines burn fuel efficiently due to their hemispherical shape. So, if you love extra horses under the hood, this engine is for you.
• Tried and True: Vehicles with HEMI® engines are reliable and can last a long time. While this depends on overall wear-and-tear and the vehicle itself, the HEMI® produces more power without more wear and tear than a traditional engine.
• Endless Thrills: If you love racing at your favorite local track or taking scenic drives every weekend, a HEMI® engine is for you. You’ll love the extra oomph every time you hit the gas pedal.

What Models Have a HEMI® Engine?

Look for these models with a HEMI® engine on our lot. Some of them might be new and others might be used, depending on their production years.

• 2023 Dodge Charger
• 2023 Dodge Challenger
• Dodge Durango
• RAM 1500
• Chrysler 300
• Pre-2024 Wagoneer models

Find Vehicles with HEMI® Engines at Sid Dillon

We can help find the right vehicle for your needs when you want a powerful engine for an exquisite driving experience. Contact us online, call , or schedule a test drive with our team.