With over 800 horses and 700 pound-feet of torque, you can now transform any car into a demon

FCA’s crate engine lineup is steadily growing with the addition of some tasteful mills. The group’s parts and accessories division, Mopar, unveiled the most powerful version of the Hellcat engine that can be plonked into any vehicle of your choice.

Dubbed as the Hellcrate Redeye crate engine, this 6.2-liter V-8 mill will dish out 807 ponies and 717 pound-feet of torque. Could it BE any better? (high five if you read that in Chandler Bing’s voice!)

This Is The Most Powerful Hellcat Engine From Mopar

Mopar Reveals New 807-Horsepower Hellcrate Redeye Supercharged HEMI Crate Engine
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The Hellcrate is the fifth V-8 HEMI engine that FCA and Mopar have to offer. We saw this horsepower figure in the Dodge Challenger Super Stock iteration launched some time back. Under the hood of that demon, the same engine produced 807 horses and 707 pound-feet of torque, which itself made 10 ponies more than the Challenger SRT Hellcat Redeye.

In the crate engine option, it makes 807 horses and 717 pound-feet of torque, making it the most powerful version of the 6.2-liter, V-8 HEMI engine.

What They Had To Say

Mopar Reveals New 807-Horsepower Hellcrate Redeye Supercharged HEMI Crate Engine
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“With the addition of this new supercharged HEMI, Mopar now offers five HEMI crate engines with a range of 375 to 1,000 horsepower,” said Mark Bosanac, Head of Mopar FCA North America. “This same supercharged HEMI engine powers the industry’s most powerful muscle cars, including the new Dodge Charger SRT Hellcat Redeye, Challenger SRT Hellcat Redeye and the high-horsepower halo of the lineup in 2021, the new 807-horsepower Challenger SRT Super Stock.”

"2021 marks the year that Dodge is distilled to a pure performance brand with 700+ horsepower models available across the entire Dodge lineup. The new 807-horsepower Hellcrate Redeye crate engine gives any pre-1976 vehicle owner another opportunity to become a member of the Dodge Brotherhood of Muscle by tapping into the Dodge//SRT power that wasn’t available then, but is now," said Tim Kuniskis, Global Head of Alfa Romeo and North American Head of Dodge, SRT, Chrysler and FIAT, FCA.

How Is It Different From The Standard Hellcrate Engine?

Mopar Reveals New 807-Horsepower Hellcrate Redeye Supercharged HEMI Crate Engine
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The Hellcrate Redeye is priced much more than the standard Hellcrate engine, but the difference is not just limited to the extra horses and torque. The Hellcrate Redeye features a larger 2.7-liter supercharger with an increased boost pressure of 14.5 psi as compared to the standard crate engine’s 2.4-liter supercharger with a boost pressure of 11.6 psi. The Redeye Hellcrate redlines at 6,500 rpm as opposed to 6,200 rpm for the standard mill. The other changes include:

  • Forged alloy steel crankshaft with 90.9-millimeter stroke and revised balancing.
  • Induction-hardened crank bearing surfaces.
  • 5150 alloy gun-drilled camshaft optimized for high rpm performance
  • Forged high-strength alloy pistons
  • Powder-forged connecting rods
  • Upgraded shank and big end
  • Revised ultra-high tensile fasteners
  • 100-percent increase in the piston-cooling jet flow
  • Revised valve-spring design and rocker tips for improved lubrication and cooling
  • Single-groove collets on valve stems for improved stability
  • Oil pan and windage tray optimized for high acceleration

What Comes In The Kit?

Mopar Reveals New 807-Horsepower Hellcrate Redeye Supercharged HEMI Crate Engine
- image 946176

The Hellcrate Redeye crate engine includes the complete engine assembly:

  • Supercharger with throttle body
  • Fuel injectors
  • Coil packs
  • Water pump
  • Front sump oil pan
  • Flexplate
  • Hellcat Redeye logo
  • Installation and Information sheets

It comes as standard for the automatic transmission. If you’re planning to make a three-pedal build, then you’ll need to purchase these additional items as well:

  • Flywheel
  • Flywheel to crankshaft bolts
  • Clutch and pressure plate assembly
  • Clutch to flywheel bolts

Mopar also offers a Front End Accessory Drive Kit which includes an alternator, power-steering pump, belts, pulleys, and mounting hardware.

Which Are The Other Crate Engines That FCA Offers?

Mopar Reveals New 807-Horsepower Hellcrate Redeye Supercharged HEMI Crate Engine
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As mentioned earlier, this is the fifth crate engine in the lineup. The others are:

  • A 5.7-liter, V-8 HEMI that makes 375 horsepower and 410 pound-feet of torque
  • A 6.4-liter, V-8 HEMI that produces 485 horses and 475 pound-feet of twist
  • A 6.2-liter, V-8 Hellcrate engine that doles out 707 ponies and 650 pound-feet of whoosh
  • A 7.0-liter, Hellephant mill that churns out 1,000 ponies and 950 pound-feet of twist

How Much Does It Cost?

Mopar Reveals New 807-Horsepower Hellcrate Redeye Supercharged HEMI Crate Engine
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Mopar has announced that this Hellcrate engine will retail at $21,807. Despite the high price, it is not the most expensive offering. The “Hellephant” 426 Supercharged Crate HEMI engine retails five bucks less than $30,000. However, that engine isn’t offered in any production car and can be had only as a crate engine. Here’s how the other three engines are priced:

  • “Hellcrate” 6.2-liter Supercharged Crate HEMI (707 horses) - $20,215
  • 6.4-liter Crate HEMI - $10,060
  • 5.7-liter Crate HEMI - $6,550

Ford’s Predator Mill Will Also Be Offered As A Crate Engine!

A 6.8-Liter, Pushrod V-8 Could Land in the Ford F-150 And Mustang by 2022
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The Hellcrate Redeye engine isn’t the only muscle car crate motor that’s going to go up for sale. As reported by FordAuthority, the Blue Oval is going to offer its ‘Predator’ V-8 powerhouse as a crate engine.

This is the same 5.2-liter engine that’s plonked under the hood of the long-named GT500.

It makes 760 horses and 625 pound-feet of torque there, but there’s no word on the power outputs it’ll make as a crate engine. There’s no information on the price either. We’ll have to wait for Ford’s official confirmation on this, which we can expect soon since Ford wouldn’t want Mopar to be in the limelight for long for the Hellcrate Redeye engine.

Final Thoughts

Mopar Reveals New 807-Horsepower Hellcrate Redeye Supercharged HEMI Crate Engine
- image 946177

Mopar says that each Hellcrate Redeye engine is dyno-tested for 42 minutes before being shipped. As for the warranty, there’s a 90-day window to exchange if there are any defects in the material.

What do you have to say about the 807-horsepower crate motor? Will you buy this, or wait for Ford’s Predator to be launched and turn your car into a GT500 incarnate? Share your thoughts with us in the comments section below.

Sidd Dhimaan
Associate Editor and Truck Expert - sidd@topspeed.com
Sidd joined the Topspeed.com team in 2017 as an intern and in less than a year he earned a full-time position as an associate editor and junior automotive expert. He is currently our pickup truck expert and focuses his attention on heavy-duty and off-road vehicles.  Read More
About the author

Mopar is unleashing the most powerful production muscle-car engine ever available to builders and enthusiasts with the launch of its newest crate engine – the 807-horsepower Hellcrate Redeye 6.2-liter Supercharged HEMI® V-8 engine.

“With the addition of this new supercharged HEMI, Mopar now offers five HEMI crate engines with a range of 375 to 1,000 horsepower,” said Mark Bosanac, Head of Mopar Service, Parts and Customer Care for FCA – North America. “All Mopar crate engines are quality-tested and factory-backed to deliver proven performance to our enthusiasts.”

Rated at 807 horsepower and 717 lb.-ft. of torque on 91-octane pump gas, the new Hellcrate Redeye crate engine is engineered with proven, factory-backed hardware first seen in the wheelie-pulling, record-setting, limited-edition 2018 Dodge Challenger SRT Demon – the world’s quickest and most powerful muscle car ever. This same supercharged HEMI engine powers the industry’s most powerful muscle cars, including the new Dodge Charger SRT Hellcat Redeye, Challenger SRT Hellcat Redeye and the high-horsepower halo of the lineup in 2021, the new 807-horsepower Challenger SRT Super Stock.

“2021 marks the year that Dodge is distilled to a pure performance brand with 700+ horsepower models available across the entire Dodge lineup,” said Tim Kuniskis, Global Head of Alfa Romeo and Head of Passenger Cars – Dodge, SRT, Chrysler and FIAT, FCA – North America. “The new 807-horsepower Hellcrate Redeye crate engine gives any pre-1976 vehicle owner another opportunity to become a member of the Dodge Brotherhood of Muscle by tapping into the Dodge//SRT power that wasn’t available then, but is now.”

If you know, you know. If you don’t, the new Hellcrate Redeye power plant features significant upgrades versus the standard Hellcrate engine, including:

Larger supercharger – 2.7 liters versus 2.4 liters
Increased boost pressure: 14.5 psi versus 11.6 psi
Higher rpm limit: 6,500 rpm versus 6,200 rpm
Forged alloy steel crankshaft with 90.9-millimeter stroke and revised balancing
Induction-hardened crank bearing surfaces; individual journal optimized main bearing clearances
5150 alloy gun-drilled camshaft optimized for high rpm performance and decreased weight
Forged high-strength alloy pistons; 30-micron increased piston-to-bore clearance
Powder-forged connecting rods; upgraded shank and big end; revised ultra-high tensile fasteners
100 percent increase in piston-cooling jet flow
Revised valve-spring design with 33 percent increase in oiling for valve springs and rocker tips for improved lubrication and cooling
Single-groove collets on valve stems for improved stability
Oil pan and windage tray optimized for high acceleration – tested up to 1.8 g
Each engine is dyno-tested for 42 minutes before being shipped

This complete engine assembly includes a supercharger with throttle body, fuel injectors, coil packs, water pump, front sump oil pan and flexplate.

Builders who prefer a manual transmission can purchase the following:

Flywheel (part # 05038113AD)
Flywheel to crankshaft bolts (part # 06504398)
Clutch and pressure plate assembly (part # 05038769AB)
Clutch to flywheel bolts (par t# 06508880AA)

Also available is a Front End Accessory Drive (FEAD) Kit (part # 77072492), which includes an alternator, power-steering pump, belts, pulleys and mounting hardware.

The Hellcrate Redeye 6.2-liter Supercharged HEMI V-8 engine (part # 68303091AA) is available to order today for a U.S. Manufacturer’s Suggested Retail Price (MSRP) of $21,807. The awesome 807- horsepower HEMI ships in distinctive packaging that features the Hellcat Redeye logo and includes in-depth information sheets with installation requirements and helpful tips.

The new Hellcrate Redeye 6.2-liter Supercharged Crate HEMI V-8 engine joins four proven power plants in the Mopar Crate HEMI engine family:

“Hellephant” 426 Supercharged Crate HEMI (part # P5160194AC)
1,000 horsepower and 950 lb.-ft. of torque
$29,995 MSRP
“Hellcrate” 6.2-liter Supercharged Crate HEMI (part # 68303089AB)
707 horsepower and 650 lb.-ft. of torque
$20,215 MSRP
6.4-liter Crate HEMI (part # 68303090AA)
485 horsepower and 475 lb.-ft. of torque
$10,060 MSRP
5.7-liter Crate HEMI (part # 68303088AA)
375 horsepower and 410 lb.-ft. of torque
$6,550 MSRP

Mopar HEMI crate engines are covered against defects in materials and workmanship for a 90-day period (parts exchange only).

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