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Hellcat Redeye Engine for Sale: Ultimate Guide to Buying the Supercharged Beast

If you’re a muscle car enthusiast or a horsepower junkie, the Hellcat Redeye engine is probably already on your radar. Known for its outrageous power and insane acceleration, this engine has become one of the most sought-after crate engines on the market. Whether you’re looking to upgrade your current ride or build a custom drag monster, finding a Hellcat Redeye engine for sale might just be the first step toward unleashing the beast.

Table of Contents

  1. Introduction
  2. What Is the Hellcat Redeye Engine?
  3. Hellcat Redeye vs Standard Hellcat Engine
  4. Specs and Performance of the Redeye Engine
  5. Why Buy a Hellcat Redeye Engine?
  6. Where to Find Hellcat Redeye Engines for Sale
  7. Cost of a Hellcat Redeye Engine
  8. Things to Consider Before Buying
  9. Installing the Hellcat Redeye Engine: DIY or Professional?
  10. Popular Vehicles for Redeye Engine Swaps
  11. Rebuilt vs Crate vs Used Hellcat Redeye Engines
  12. Warranty and Legal Considerations
  13. How to Avoid Scams When Buying Online
  14. Financing Options for a Redeye Engine
  15. Maintenance and Longevity
  16. Top Sellers and Engine Builders in the US
  17. Tuning and Aftermarket Upgrades
  18. Customer Reviews and Real-World Experiences
  19. Shipping and Handling Considerations
  20. Final Thoughts: Is the Hellcat Redeye Engine Worth It?
  21. FAQs

1. Introduction

If you’re a muscle car enthusiast or a horsepower junkie, the Hellcat Redeye engine is probably already on your radar. Known for its outrageous power and insane acceleration, this engine has become one of the most sought-after crate engines on the market. Whether you’re looking to upgrade your current ride or build a custom drag monster, finding a Hellcat Redeye engine for sale might just be the first step toward unleashing the beast.

2. What Is the Hellcat Redeye Engine?

The Hellcat Redeye engine, officially known as the 6.2L Supercharged HEMI V8, is derived from the original Dodge Challenger and Charger SRT Hellcat Redeye models. This monstrous engine is a high-output version of the already powerful Hellcat engine and is heavily inspired by the Dodge Demon’s powertrain.

  • Engine code: 6.2L HEMI V8 Supercharged (Code: HEMI 6.2L HO)
  • Displacement: 6.2 liters
  • Induction: Supercharged
  • Fuel type: Premium unleaded gasoline
  • Aspiration: Forced induction via 2.7L supercharger

3. Hellcat Redeye vs Standard Hellcat Engine

FeatureHellcat EngineHellcat Redeye Engine
Horsepower717 HP797 HP
Torque656 lb-ft707 lb-ft
Supercharger2.4L2.7L
Max RPM6,200 RPM6,500 RPM
Redline6,200 RPM6,500 RPM
InternalsForged pistonsDemon-grade internals

The Hellcat Redeye outmuscles the standard Hellcat in every performance metric, thanks to a larger supercharger, strengthened internals, and an upgraded fuel and cooling system.

4. Specs and Performance of the Redeye Engine

  • Horsepower: 797 HP @ 6,300 RPM
  • Torque: 707 lb-ft @ 4,500 RPM
  • Boost pressure: 14.5 psi
  • Supercharger size: 2.7L IHI
  • Compression ratio: 9.5:1
  • Cooling system: SRT Power Chiller and After-Run Chiller
  • 0-60 mph time (in car): ~3.4 seconds

5. Why Buy a Hellcat Redeye Engine?

Here are compelling reasons to buy this engine:

  • Unmatched power in its class
  • Track-proven reliability
  • Proven performance history from Dodge SRT lineup
  • Available as a standalone crate engine
  • Wide compatibility with other Mopar vehicles

6. Where to Find Hellcat Redeye Engines for Sale

Finding a Hellcat Redeye engine for sale can be tricky due to high demand. Below are top places to start:

Authorized Mopar Dealers

  • Mopar Performance offers genuine crate engines.
  • Part number: 68303089AA (crate version)

Online Performance Retailers

  • Jegs.com
  • SummitRacing.com
  • AmericanMuscle
  • Hemmings
  • eBay Motors (for used or pulled engines)

Specialty Engine Builders

  • Hennessey Performance
  • Arrington Performance
  • Gearhead Engines
  • Cleveland Power & Performance

7. Cost of a Hellcat Redeye Engine

Prices vary depending on condition and vendor.

Engine ConditionPrice Range
Brand New Crate$21,000 – $26,000
Used Engine$14,000 – $18,000
Rebuilt$16,000 – $22,000

Note: Prices exclude transmission, installation, taxes, and shipping.

8. Things to Consider Before Buying

  • VIN authentication (if used)
  • Mileage and usage history
  • Whether it’s complete or missing accessories
  • Warranty availability
  • Compatibility with your vehicle
  • ECU and harness requirements

9. Installing the Hellcat Redeye Engine: DIY or Professional?

DIY Pros

  • Save labor cost
  • Hands-on experience

DIY Cons

  • Complicated ECU tuning
  • Risk of damage

Professional Installation Pros

  • Warranty coverage
  • Turnkey installation
  • Proper dyno tuning

Expect to pay $3,000–$7,000 for professional installation including labor, mounts, fuel system upgrades, and ECU integration.

10. Popular Vehicles for Redeye Engine Swaps

  • Dodge Charger (older trims)
  • Dodge Challenger R/T
  • Jeep Grand Cherokee
  • Ram 1500
  • Plymouth Barracuda
  • Chrysler 300C
  • Custom muscle cars, restomods, hot rods

11. Rebuilt vs Crate vs Used Hellcat Redeye Engines

TypeProsCons
CrateBrand new, full warrantyExpensive
UsedAffordableRisk of wear/damage
RebuiltRefreshed internalsMay lack warranty

12. Warranty and Legal Considerations

  • Crate engines come with limited 3-year warranties from Mopar.
  • Ensure your state emissions laws allow Redeye engine swaps.
  • Check insurance implications for modified vehicles.

13. How to Avoid Scams When Buying Online

  • Only buy from verified dealers
  • Ask for engine serial numbers and photos
  • Verify mileage through pull-out documentation
  • Be wary of prices too good to be true
  • Check reviews and forums for seller credibility

14. Financing Options for a Redeye Engine

Some dealers offer payment plans via:

  • Affirm
  • PayPal Credit
  • Klarna
  • Personal loans from credit unions
  • Credit cards (watch interest rates)

15. Maintenance and Longevity

Oil Change Interval: Every 3,000–5,000 miles

Recommended Oil: 0W-40 Full Synthetic

Supercharger Maintenance: Check belt and pulley every 15,000 miles

Spark Plugs: Replace every 30,000 miles

With proper care, the Redeye engine can last over 150,000 miles.

16. Top Sellers and Engine Builders in the US

1. Cleveland Power & Performance

  • Offers full Redeye drivetrain kits with engine, transmission, ECU.

2. Hennessey Performance

  • Known for high-end performance tuning and complete builds.

3. Mopar Direct Connection

  • OEM crate engine kits with warranty.

17. Tuning and Aftermarket Upgrades

Popular mods after installing the Redeye engine:

  • Cold air intakes
  • High-flow exhaust
  • ECU tuning (HP Tuners, DiabloSport)
  • Upgraded fuel injectors
  • Pulley swaps for more boost
  • Methanol injection kits

18. Customer Reviews and Real-World Experiences

James from Texas:

“Dropped a Redeye crate into my ’69 Charger. The thing’s an animal. Got 810 HP on the dyno with just a mild tune!”

Mike in Ohio:

“Found a used Redeye engine on eBay. Had it inspected and installed in my Challenger R/T. It’s night and day!”

19. Shipping and Handling Considerations

  • Engines weigh over 600 lbs.
  • Must be shipped via freight.
  • Shipping cost: $300–$1,000 depending on distance and carrier.
  • Use a liftgate truck and pallet jack for delivery.

20. Final Thoughts: Is the Hellcat Redeye Engine Worth It?

If you’re chasing raw power, track dominance, and pure American muscle, the Hellcat Redeye engine is one of the best investments. Whether you’re doing a swap or starting a custom build, it offers unmatched value in its power category.

21. Frequently Asked Questions (FAQs)

Q1: How much does a Hellcat Redeye engine cost?

A: A brand-new crate engine costs $21,000–$26,000. Used ones go for $14,000–$18,000.

Q2: What vehicles can I install the Redeye engine into?

A: It can be installed in most Mopar platforms including Challengers, Chargers, Rams, and classic muscle cars.

Q3: Is it street-legal to install the Hellcat Redeye engine?

A: In most states, yes—but check your local emissions laws and CARB certifications if in California.

Q4: What is the difference between the Hellcat and Redeye engine?

A: The Redeye is a more powerful version with upgraded internals, larger supercharger, and higher output (797 HP vs 717 HP).

Q5: Do Redeye engines come with a transmission?

A: Crate engines usually don’t include a transmission unless you purchase a complete drivetrain package.

Q6: Can I finance the engine purchase?

A: Yes, many sellers offer payment plans through Klarna, Affirm, or PayPal Credit.

Q7: How long does a Hellcat Redeye engine last?

A: With proper maintenance, it can last over 150,000 miles, though hard track use may shorten its lifespan.

Q8: Where can I find a Hellcat Redeye engine for sale near me?

A: Search local performance shops, eBay Motors, Facebook Marketplace, and Mopar-authorized resellers.

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