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HEMI Performance Parts by A2Speed

A2Speed is dedicated to developing leading edge, high performance, and innovative new products for the HEMI market. We pride ourselves on thinking of solutions to difficult problems. No idea is too big or too small for us! A2speed prides its self on high quality customer service. We believe that the only way to successfully serve our community is by answering customer’s questions, and providing them with an extensive knowledge base of the GEN III HEMI. When working with us you will find that your inquiries will be answered in a timely manner. 
 

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5.7L HEMI Stroker Kit, CP-Carrillo / Molnar 5.7L to 6.2L
5.7L HEMI Stroker Kit, CP-Carrillo / Molnar 5.7L to 6.2L
5.7L HEMI Stroker Kit (5.7L to 6.2L Forged HEMI Stroker Kit) Are you looking to make more power with your 5.7L HEMI powered Dodge... 
Original Price:$3,999.99
On Sale For:   $3,199.99
SKU:A2S-CPMOL6.2SK
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5.7L HEMI Stroker Kit, CP-Carrillo / Molnar 5.7L to 6.4L (392 CID)
5.7L HEMI Stroker Kit, CP-Carrillo / Molnar 5.7L to 6.4L (392 CID)
5.7L HEMI stroker kit (5.7L - 6.4L, 392 CID Forged Stroker Kit) Are you looking to make more power with your 5.7L HEMI powered Dodge... 
Original Price:$3,999.34
On Sale For:   $3,199.95
SKU:A2S-CPMOL392SK
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A2Speed / Thitek 5.7 HEMI CNC Ported Heads
A2Speed / Thitek 5.7 HEMI CNC Ported Heads
A2Speed now offers 5.7L HEMI heads CNC Ported by Thitek These high performance heads feature new PSI conical valve spring, tool steel... 
Original Price:$2,299.99
On Sale For:   $2,150.00
SKU:A2S-PHEAD-57
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A2Speed / Thitek 6.1 HEMI CNC Ported Heads
A2Speed / Thitek 6.1 HEMI CNC Ported Heads
A2Speed now offers 6.1L HEMI heads CNC Ported by Thitek These high performance heads feature new PSI conical valve spring, tool steel... 
Original Price:$2,299.99
On Sale For:   $2,150.00
SKU:A2S-PHEAD-61
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A2Speed / Thitek 6.1 HEMI Stage 1 Ported intake manifold
A2Speed / Thitek 6.1 HEMI Stage 1 Ported intake manifold
6.1 HEMI Stage 1 Ported intake manifoldA 6.1L SRT8 HEMI ported intake manifold is a grate option if you’re looking to increase your... 
Original Price:$937.50
On Sale For:   $750.00
SKU:A2S-61PHIM1
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A2Speed / Thitek 6.1 HEMI Stage 2 Ported intake manifold
A2Speed / Thitek 6.1 HEMI Stage 2 Ported intake manifold
6.1 HEMI Stage 2 Ported intake manifoldA 6.1L SRT8 HEMI ported intake manifold is a grate option if you’re looking to increase your... 
Original Price:$1,875.00
On Sale For:   $1,500.00
SKU:A2S-61PHIM2
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A2Speed / Thitek CNC Ported 6.4L 392 HEMI Heads
A2Speed / Thitek CNC Ported 6.4L 392 HEMI Heads
A2Speed now offers 6.4L HEMI heads CNC Ported by Thitek These high performance heads feature new PSI conical valve spring, tool steel... 
Original Price:$2,619.99
On Sale For:   $2,150.00
SKU:A2S-PHEADS-64
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A2Speed 2005-2017 LX / LC 3-way Adjustable Coil Over Kit
A2Speed 2005-2017 LX / LC 3-way Adjustable Coil Over Kit
The A2Speed team is proud to announce our true coil over kit. The kit is 3-way adjustable (1) ride height, (2) rebound, and (3)... 
Price:$949.99
SKU:A2S-
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A2Speed 2006-2019 Billet 85mm/90mm HEMI Throttle Body w/Options
A2Speed 2006-2019 Billet 85mm/90mm HEMI Throttle Body w/Options
A2Speed 85mm & 90mm Billet Throttle BodyA2Speed now offers a T6063-T6 aluminum billet, true 85mm or 90mm direct factory replacement... 
Original Price:$559.99
On Sale For:   $495.99
SKU:A2S-HTB-
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A2Speed EFI to AN -08 fuel rail adaptor
A2Speed EFI to AN -08 fuel rail adaptor
A2Speed is proud to announce our new banjo style EFI to AN adapters.Designed to provide maximum flow in a space saving package,... 
Original Price:$45.99
On Sale For:   $28.95
SKU:A2S-HEMI-BANJO-1.0
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A2Speed HEMI Coil Pack Beauty Cover
A2Speed HEMI Coil Pack Beauty Cover
Make Your HEMI Engine Bay Look Amazing and Clutter Free With The A2Speed Coil Pack CoverOur brand new A2Speed HEMI beauty cover is... 
Price:$349.99
SKU:A2S-HEMI-CC-4.50
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A2Speed HEMI Fuel Rails With Optional Pulsation Damper
A2Speed HEMI Fuel Rails With Optional Pulsation Damper
The best fuel rail for the Gen III HEMIRailsConstructed of 6063-T6 aerospace grade aluminum extrusionsLevel II anodizedFull -8 AN / JIC... 
Price:$199.99
SKU:A2S-HEMI-FR-4.50
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A2Speed HEMI Valve Cover With Self Draining Air Oil Seperator
A2Speed HEMI Valve Cover With Self Draining Air Oil Seperator
A2Speed HEMI Valve CoverA2Speed is proud to announce the first in a long line of innovative products. Our valve cover incorporates a... 
Price:$439.99
SKU:A2S-HEMI-VC-2.0
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A2Speed Rear 3-way Adjustable Coil Over Kit
A2Speed Rear 3-way Adjustable Coil Over Kit
The A2Speed team is proud to announce our true coil over kit. The kit is 3-way adjustable (1) ride height, (2) rebound, and (3)... 
Price:$949.99
SKU:A2S-RCO
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CP-Carrillo / Molnar 6.1L to 7.0L (426 CID) HEMI Stroker Kit
CP-Carrillo / Molnar 6.1L to 7.0L (426 CID) HEMI Stroker Kit
6.1L to 426 HEMI Stroker Kit Are you looking to make more power with your 6.1L HEMI powered Dodge Challenger, Charger, Magnum, and... 
Price:$3,199.95
SKU:A2S-61CPMOL426SK
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CP-Carrillo / Molnar 6.4L (392 CID) to 7.0L (426 CID) HEMI Stroker Kit
CP-Carrillo / Molnar 6.4L (392 CID) to 7.0L (426 CID) HEMI Stroker Kit
6.4L to HEMI 426 Stroker Kit Are you looking to make more power with your 6.4L HEMI powered Dodge Challenger, Charger, Magnum, and... 
Original Price:$3,999.34
On Sale For:   $3,199.95
SKU:A2S-CPMOL426SK
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HEMI throttle body conversion wiring harness, VDO to Magneti Marelli.
HEMI throttle body conversion wiring harness, VDO to Magneti Marelli.
A2Speed solves another problem. Need to install the Magneti Marelli throttle body on your older Gen III HEMI? This harness is a plug and... 
Price:$43.99
SKU:A2S-TBCK
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Ray Barton / A2Speed 392 Stroker 5.7L Based Long Block
Ray Barton / A2Speed 392 Stroker 5.7L Based Long Block
A2Speed 5.7 to 392 Short Block SpecsDisplacement: 392 CID (6.4L)Bore: 3.920"Stroke: 4.080"Boosted Compression Ratio: 9.8 : 1Naturally... 
Original Price:$11,024.99
On Sale For:   $9,990.00
SKU:A2S-392HLB57
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Ray Barton / A2Speed 392 Stroker 5.7L Based Short Block
Ray Barton / A2Speed 392 Stroker 5.7L Based Short Block
A2Speed 5.7 to 392 Short Block SpecsDisplacement: 392 CID (6.4L)Bore: 3.920"Stroke: 4.080"Boosted Compression Ratio: 9.8 : 1Naturally... 
Original Price:$5,749.99
On Sale For:   $4,999.00
SKU:A2S-392HSB57
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Ray Barton / A2Speed 426 HEMI Stroker 6.1L Based Long Block
Ray Barton / A2Speed 426 HEMI Stroker 6.1L Based Long Block
A2Speed 6.1 to 426 Short Block SpecsDisplacement: 426 CID (7.0L)Bore: 4.080"Stroke: 4.080"Boosted Compression Ratio: 9.8 : 1Naturally... 
Original Price:$11,649.99
On Sale For:   $9,990.00
SKU:API-426HLB61
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Ray Barton / A2Speed 426 HEMI Stroker 6.1L Short Block
Ray Barton / A2Speed 426 HEMI Stroker 6.1L Short Block
A2Speed 6.1 to 426 Short Block SpecsDisplacement: 426 CID (7.0L)Bore: 4.080"Stroke: 4.080"Boosted Compression Ratio: 9.8 : 1Naturally... 
Original Price:$5,749.99
On Sale For:   $5,199.00
SKU:A2S-426HSB61
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Ray Barton / A2Speed 5.7L Based HEMI 392 Stroker Crate Engine
Ray Barton / A2Speed 5.7L Based HEMI 392 Stroker Crate Engine
5.7L to 6.4L, 392 CID HEMI Crate EngineThe 5.7L to 392 CID HEMI crate engine offers a completely forged short block as a base. Upgrading... 
Price:$18,349.99
SKU:A2S-392HCE57
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Ray Barton / A2Speed 5.7L Based HEMI 6.2L Stroker Crate Engine
Ray Barton / A2Speed 5.7L Based HEMI 6.2L Stroker Crate Engine
A2Speed 5.7L to 6.2L HEMI Crate Engine SpecsDisplacement: 378 CID (6.2L)Bore: 3.937Stroke: 3.900Boosted Compression Ratio: 9.8 :... 
Price:$18,325.53
SKU:A2S-62HCE57
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Ray Barton / A2Speed 5.7L HEMI to 6.2L Stroker Long Block
Ray Barton / A2Speed 5.7L HEMI to 6.2L Stroker Long Block
A2Speed 5.7L to 6.2L Short Block SpecsDisplacement: 378 CID (6.2L)Bore: 3.937Stroke: 3.900Boosted Compression Ratio: 9.8 : 1Naturally... 
Original Price:$12,499.99
On Sale For:   $9,990.00
SKU:A2S-62HLB57
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Ray Barton / A2Speed 5.7L HEMI to 6.2L Stroker Short Block
Ray Barton / A2Speed 5.7L HEMI to 6.2L Stroker Short Block
A2Speed 5.7L to 6.2L Short Block SpecsDisplacement: 378 CID (6.2L)Bore: 3.937Stroke: 3.900Boosted Compression Ratio: 9.8 : 1Naturally... 
Original Price:$5,749.99
On Sale For:   $4,999.00
SKU:A2S-62HSB57
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Ray Barton / A2Speed 6.4 Based 426 HEMI Stroker Long Block
Ray Barton / A2Speed 6.4 Based 426 HEMI Stroker Long Block
A2Speed 6.4 to 426 Short Block SpecsDisplacement: 426 CID (7.0L)Bore: 4.090Stroke: 4.050Boosted Compression Ratio: 9.8 : 1Naturally... 
Original Price:$11,649.99
On Sale For:   $9,990.00
SKU:A2S-426HLB64
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Ray Barton / A2Speed 6.4 VVT Forged 392 HEMI Short Block
Ray Barton / A2Speed 6.4 VVT Forged 392 HEMI Short Block
A2Speed Forged 6.4, 392 Short Block SpecsDisplacement: 392 CID (6.4L)Bore: 4.090Stroke: 3.724Boosted Compression Ratio: 9.8 : 1Naturally... 
Original Price:$4,299.99
On Sale For:   $3,999.99
SKU:A2S-64FSB
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Ray Barton / A2Speed 6.4 VVT HEMI Engine to 426 HEMI Stroker Short Block
Ray Barton / A2Speed 6.4 VVT HEMI Engine to 426 HEMI Stroker Short Block
A2Speed 6.4 to 426 Short Block SpecsDisplacement: 426 CID (7.0L)Bore: 4.090Stroke: 4.050Boosted Compression Ratio: 9.8 : 1Naturally... 
Original Price:$5,749.99
On Sale For:   $4,990.99
SKU:A2S-426HSB64
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Ray Barton / A2Speed 6.4L (392 CID) Based HEMI Forged Long Block
Ray Barton / A2Speed 6.4L (392 CID) Based HEMI Forged Long Block
A2Speed Forged 6.4, 392 Short Block SpecsDisplacement: 392 CID (6.4L)Bore: 4.090Stroke: 3.724Boosted Compression Ratio: 9.8 : 1Naturally... 
Original Price:$11,024.99
On Sale For:   $9,090.00
SKU:A2S-392FSB
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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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VVT 5.7L and 6.4L HEMI Head and Cam Package w/ Options
VVT 5.7L and 6.4L HEMI Head and Cam Package w/ Options
VVT 5.7L / 6.4L Head and Cam Package! Are you looking to add some serious horsepower to your HEMI powered car or truck? A2Speed offers a... 
Original Price:$3,499.99
On Sale For:   $2,999.99
SKU:A2S-VVTHCP
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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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