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6.4L HEMI Crate Engines

Looking to add some serious power to your restomod or HEMI swap project vehicle? Well A2Speed offers stock Mopar and forged stroker 6.4L HEMI crate engines. Our forged strokers are made by Ray Barton Racing Engines, the same company Mopar used to build the drag pack HEMIs. No one knows how to get power from a HEMI like Ray Barton and A2Speed. All of our crate engines come standard with forged internals, ARP main studs, ported heads, a high lift cam, and much more. Better still they are backed with an industry leading 3 year / 36,000 mile warranty.  
 

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392 HEMI Crate Engine
392 HEMI Crate Engine
6.4L / 392 HEMI Crate Engine Mopar V8The Mopar 6.4L, 392 V8 HEMI engine features 485 horsepower and 470 lb-ft of torque. This high... 
Price:$7,649.00
SKU:MPR-392CM
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6.4L HEMI Crate Engine Wiring Harness and Management by MOPAR
6.4L HEMI Crate Engine Wiring Harness and Management by MOPAR
392 6.4L CRATE HEMI® ENGINE KITS By: MOPARThese Crate HEMI® Engine Kits are intended for pre-1976 street vehicles used on... 
Price:$1,745.00
SKU:77072454AB
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A/C Expansion Kit By: Mopar
A/C Expansion Kit By: Mopar
392 345 & Hellcat Crate HEMI® Engines A/C Expansion Kit By: MoparHot under the collar? Build your custom A/C solution using... 
Price:$296.06
SKU:77072446AB
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Mopar 45° Oil Filter Adapter- P/N 77072447
Mopar 45° Oil Filter Adapter- P/N 77072447
45 Degree Oil Filter By: MoparThe Mopar 45 Degree oil filter makes oil changes easier and cleaner by reducing cross-member interference... 
Price:$74.58
SKU:77072447
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Mopar 6.4L 392 Crate FEAD Kit 77072445
Mopar 6.4L 392 Crate FEAD Kit 77072445
392 6.4L Crate HEMI® FEAD Basics Kit By: MoparComplete your Crate HEMI® Engine Kit with these other simple solutions for... 
Price:$528.84
SKU:77072445
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MOPAR 6.4L Stock 6-Speed Camshaft - 5037379BC
MOPAR 6.4L Stock 6-Speed Camshaft - 5037379BC
MOPAR 6.4L Stock 6-Speed CamshaftThis is a stock replacement Camshaft for 2008+ SRT-8 6-Speed vehicles. Intake measures .577 and the... 
Price:$239.95
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Mopar Jeep SRT Exhaust Manifolds - P/N 77072462
Mopar Jeep SRT Exhaust Manifolds - P/N 77072462
JEEP GRAND CHEROKEE SRT EXHAUST MANIFOLD KIT By: MoparIn a tight spot? Need an exhaust manifold solution for your 6.2L... 
Price:$320.92
SKU:77072462
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Mopar Rear Sump Oil Pan Kit 77072450AB
Mopar Rear Sump Oil Pan Kit 77072450AB
Rear Sump Oil Pan Kit By: MoparTake the guesswork out of selecting an oil pan with this all-in-one solution. This kit gives you... 
Price:$199.00
SKU:77072450AB
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Ray Barton / A2Speed 6.4L Based HEMI 426 Stroker Crate Engine
Ray Barton / A2Speed 6.4L Based HEMI 426 Stroker Crate Engine
The Ray Barton / A2Speed 6.4L to 7.0L 426 HEMI Crate EngineThe 6.4L, 392 CID to 426 CID HEMI crate engines are completely forged, and... 
Price:$18,325.53
SKU:A2S-426HCE64
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Ray Barton / A2Speed 6.4L Based HEMI Forged 392 Crate Engine
Ray Barton / A2Speed 6.4L Based HEMI Forged 392 Crate Engine
A2Speed Forged 6.4, 392 HEMI Crate Engine SpecsDisplacement: 392 CID (6.4L)Bore: 4.090Stroke: 3.724Boosted Compression Ratio: 9.8 :... 
Original Price:$5,749.99
On Sale For:   $13,999.99
SKU:A2S-392HFCE64
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HEMI Performance Parts

A2Speed has every HEMI upgrade you could imagine. Search through a catalog of our favorite performance upgrades for each engine platform.

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HEMI Supercharger

Superchargers are the most cost-effective way of adding horsepower to a modern HEMI engine. We carry many different brands and types of superchargers.

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HEMI Crate Engines

HEMI crate engines are a great addition to any “Resto Mod” project. We can find a way to HEMI swap just about any vehicle!

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The Home for Ray Barton Racing Engines built GEN III HEMI’s

A2Speed is now providing the HEMI community with the best of the best in regards to engine building companies. Our motors are found in some of the highest horse power GEN III HEMI’s around the country, and are proven to work, and work reliably.

About A2Speed
Quality Products and Services
  • About Us
  • What We Do
  • How We Do It
  • Our Quality
A2Speed is an employee owned automotive performance parts company, specializing in the Gen III HEMI engine and the cars & trucks it powers. Just like you we are Hemi enthusiasts, and like you we are only interested in proven performance solutions. Good enough isn’t. People who invest in performance modifications want parts that last decades, not years. The effort is only valuable if the result is better than good enough, and frankly these days that’s hard to do.

A2Speed’s GEN III HEMI Background

Many of us at A2Speed have been working on the Gen III since its inception. As a team we are immersed in the Hemi world. We own, drive, modify, race and occasionally…break them. We use this experience to create SOLUTIONS, not just parts. Automotive engineering has advanced such that it is often difficult to improve on the work done by the OEMs. Difficult, not impossible. Utilizing advanced 3D modeling, CFD and stress simulations coupled with rapid prototyping, allow for the development of specialized parts that would be impractical at OEM volumes. Solutions validated with real world testing. Craftsmen level quality; and because we don’t have the layered overhead, our prices are often at or below the OEM price.

Advanced Aerospace Grade Machining

Production manufacturing is performed by partner companies that have proven track records for quality and timely deliveries. We look for certifications such as ISO-9001 and AS-9100 along with ITAR and GIDEP registrations. Several of the companies we work with regularly supply major aerospace firms and the DOD. Why use outside machining services? So that you get a better part at a better price. By utilizing only the machine cycles we need, and leveraging the superior skills and years of experience, A2Speed can give you exceptional quality at truly affordable prices.

Our company is guided by a set of core values and beliefs


  • We know that we are a community, not a “market”.
  • We recognize that we serve this community at the pleasure of its members.
  • We understand the passions, challenges and rewards that drive the enthusiast.
  • We believe that function drives form, improved performance improves appearance.
  • We know that one company can’t do it all, therefore we value partnerships.

How This Applies to Our Customers


  • We never settle for anything less than perfection.
  • All of our parts are put under intense testing before being released to you
  • You can feel secure because we use both our closest partners and our own cars to test A2Speed’s products
  • Finally we know that just having a great product isn’t enough, thus we strive to offer superior customer service, and the lowest prices. Giving you the best experience possible from start to finish.
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