Demon 170 Engine for Sale: The Ultimate Guide to Buying the World’s Most Powerful Muscle Car Engine

If you’re searching for a Demon 170 engine for sale, you’re likely someone who appreciates extreme performance, engineering marvels, and the raw power of American muscle. The Dodge Challenger SRT Demon 170, unveiled in 2023, houses the most powerful production V8 ever installed in a muscle car — a jaw-dropping 1,025-horsepower supercharged 6.2L HEMI V8.

In this comprehensive guide, we’ll cover everything you need to know about buying the Demon 170 engine, its specs, availability, performance, price, and the best places to find one.

---

🔧 What Is the Demon 170 Engine?

The Demon 170 engine, officially referred to as the Supercharged 6.2L HEMI® V8 – Demon 170, is the heart of the Dodge Challenger SRT Demon 170, Dodge’s final “Last Call” special edition muscle car. It is the highest-horsepower internal combustion engine ever produced by Dodge, and it’s designed to dominate the drag strip.

🔥 Key Highlights:

• Horsepower: 1,025 hp on E85 ethanol blend

• Torque: 945 lb-ft

• Engine Displacement: 6.2 liters

• Fuel System: Dual-fuel capability (E10 and E85)

• Supercharger: 3.0-liter IHI high-output

• 0-60 mph: 1.66 seconds (on E85)

This engine isn’t just powerful — it’s historic. It’s the first-ever 8-second quarter-mile production car engine and it marks the end of an era for Dodge’s gasoline-powered muscle cars.

---

🛒 Where to Find a Demon 170 Engine for Sale

Given its exclusivity and limited production, finding a Demon 170 engine for sale isn’t as simple as visiting your local auto parts store. Here are your best options:

1. Authorized Dodge Dealerships

Some dealerships may have unused Demon 170 crate engines available for purchase or from parted-out vehicles. However, these are extremely rare and often come with high markups due to demand.

2. Specialty Performance Shops

High-performance engine builders and racing outfitters might offer Demon 170 crate engines, especially if sourced from damaged or salvaged Demon 170 cars.

3. Online Automotive Marketplaces

Websites to check include:

• eBay Motors: Occasionally, listings pop up for brand-new or lightly used engines.

• RacingJunk.com: Great for performance and drag-racing components.

• Facebook Marketplace & Groups: Dodge enthusiast groups may offer engines directly from private owners.

• Bring a Trailer & Hemmings: May list Demon 170-powered builds or parted-out engines.

4. Auto Salvage Yards & Auctions

Crashed Dodge Demon 170s might end up at salvage yards. Engines are often extracted and sold individually through:

• Copart

• IAAI (Insurance Auto Auctions)

• LKQ Pick Your Part

Make sure to check the engine condition and mileage before purchase.

---

💲 How Much Does a Demon 170 Engine Cost?

Because the Dodge Demon 170 is a limited-production vehicle (only 3,300 units), the engine is extremely rare and valuable.

Estimated Prices:

Keep in mind that prices vary based on mileage, condition, and included components (e.g., wiring harness, ECU, transmission).

---

⚙️ Demon 170 Engine Specifications

---

🧰 Is the Demon 170 Engine Street Legal?

Yes, the engine itself is street-legal, as it was used in a production vehicle. However, if you swap it into a different car, you’ll need to comply with local emissions regulations.

In the U.S., California’s CARB regulations may restrict use or require additional compliance if installed in a non-Demon vehicle. Always check with your local DMV or emissions authority.

---

🏁 What Cars Can You Swap the Demon 170 Engine Into?

Theoretically, you can swap the Demon 170 engine into any vehicle with enough room and structural support, but it’s best suited for:

• Challenger R/T or SRT models

• Charger Hellcat variants

• Dodge Durango SRT (with extensive modification)

• Classic muscle cars (e.g., 1970 Challenger, 1969 Charger)

• Drag racing frames & custom builds

Swap Considerations:

• Transmission Compatibility: You’ll likely need a beefed-up TorqueFlite 8HP90 transmission or similar.

• Cooling System: The engine produces extreme heat and requires advanced cooling solutions.

• Drivetrain & Suspension: Be prepared to upgrade differentials, driveshafts, and axles.

• Electronics: ECU programming, wiring harnesses, and fuel system upgrades are essential.

---

⚖️ Demon 170 Engine vs Hellcat Redeye vs Hellephant

The Demon 170 engine edges out the Hellephant in horsepower due to its E85 tuning and refined engineering. It’s also part of a road-legal, production car, unlike the crate-only Hellephant.

---

🧪 Performance Mods for the Demon 170 Engine

Although the Demon 170 engine is already highly optimized, performance tuners may still tweak:

• ECU tuning for race fuel

• Pulley and belt upgrades

• Custom headers and exhaust systems

• Upgraded intercoolers

• Methanol injection systems

However, increasing output beyond factory spec could void any warranties and reduce reliability.

---

📦 Demon 170 Crate Engine Package: What’s Included?

If you’re lucky enough to find a crate version, here’s what’s typically included:

• Complete assembled engine

• Supercharger installed

• Fuel system components

• Ignition system

• ECU & programming

• Wiring harness

• Sensors

• Installation guide (if from Mopar)

Note: Always verify with the seller to avoid surprises.