Welcome to shopHEMI.com
shopHEMI has been building HEMI engines since the beginning. We specialize in applying our winning NASCAR racing technology to power up your street car. More HEMI perfomance...
Dreaming of Adding More Performance to your HEMI?
Arrington Performance now offers Layaway; the perfect solution for anyone wanting to get in on a special sale price, finance a build or get more horsepower without spending all the cash up front. Click Here to read more about shopHEMI's layaway plan.
Dreaming of Adding More Performance to your HEMI?
Arrington Performance now offers Layaway; the perfect solution for anyone wanting to get in on a special sale price, finance a build or get more horsepower without spending all the cash up front. Click Here to read more about shopHEMI's layaway plan.

Sale Price: $219.99
$1,199.99
$559.95

Sale Price: $345.99

Sale Price: $263.76
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Diablosport InTune
The DiabloSport inTune is the next generation of tuning tools, a total revolution in the tuning industry. The inTune contains innovative features that will not available from any other company in the aftermarket for years to come. DiabloSport's inTune replaces their current Predator line with a sleeker touch screen unit. Unlike current Predator models which only support a few vehicles, the InTune supports a wide range of performance vehicles....
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Arrington Performance Transmission Solutions
ShopHEMI now offers a full lineup of Arrington Performance transmission solutions. Each HEMI transmission is purpose built by NAG1 specialists to maximize the performance of your specific vehicle, power output, and engine type. We have race and street proven NAG1 setups designed for HEMI engines with Twin screws superchargers, centrifugal superchargers, turbochargers, NA stroker internals, and bolt-on modifications...
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Arrington Introduces Its New Line of Performance Camshafts
Arrington has just revamped its line of high performance camshafts. These new camshafts have been engineered with the latest technology to give your HEMI engine the maximum horsepower and torque. ShopHEMI offers the
ST-3A and SR-2B
to complement your Dodge, Chrysler, or Jeep motor....
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Edelbrock E-Force HEMI Superchargers
Does your HEMI equipped Dodge Challenger, Charger, Magnum, or Chrysler 300c need some extra muscle? Then get an Edelbrock E-Force Supercharger kit - quite possibly one of the most efficient supercharger that you can purchase for the current Dodge / Chrysler 5.7L and 6.1L HEMI engines. These complete supercharger kits provide optimal flow, minimum temperature climb, silent operation and durability only the Edelbrock name can promise. They feature minimum air restriction in and out of the supercharger for the most...
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10.01.10 Mopar Introduces 2011 Dodge Challenger Drag Pak V10
The new race-only V-10 powered rear-wheel drive 2011 Mopar Challenger Drag Pak features an 8.4-liter 512 cubic-inch engine with a 2-speed automatic transmission. Mopar will showcase its new drag car this evening at the Dodge Viper Owner's Invitational in Salt Lake City. The vehicle will then make its way to the Specialty Equipment Market Association (SEMA) show in Las Vegas from Nov. 2-5, and the Performance Racing Industry (PRI) show in Orlando from Dec. 9-11. "With the introduction of our new 2011 Mopar Challenger Drag Pak... -
Pedders Suspension Offers New Products
Many of our Pedder's Suspension Products have been improved and updated. We will continue to update these products, as new Pedder's suspension kits and parts become available. If you are not familiar with Pedders, they make lowering spring kits, coil-overs, struts, bushings, and complete suspension systems...
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HEMI Jeep SRT8 Carbon Fiber Cold Air Intake by Arrington Engines
Dodge and Chrysler LX and LC owners have been enjoying our best selling HEMI carbon fiber cold air intake system, for several months. Now the wait is over for Jeep Grand Cherokee SRT-8 owners, and they too can enjoy the same benefits on their 6.1L HEMIs. This Jeep SRT8 carbon fiber intake takes full advantage...
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2 Bar VS 3 Bar Map Sensors
Customers sometimes ask, how do I tell the difference between a 2 bar and a 3 bar map sensor? The image below shows the difference between the two boost sensors. As you can see, it can be hard to distinguish between the two. even with the 2 sensors side by side. Notice that they both have the same part number on the first line, but the 3 bar sensor on the left has two additional lines of numbers. Whereas the 2 bar sensor on the right has
only one additional line...
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2011 Dodge Challenger SRT-8 392
New for the 2011 SRT-8 models, Dodge replaces the 6.1L with a larger, more powerfully 6.4L / 392 HEMI engine. This change takes the top of the line Challenger from 425 horsepower @ 6200 RPM and 420 Ft-lbs of torque @ 4800 RPM to 470 HP and 470 TQ! The extra 45 HP and 90 TQ is more than enough power to allow the LC to dethrone Chevy's 6.2L LS3 / L99 Camaro SS with its 426 horsepower from being the most powerful stock...
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Advantages of Mahle Forged Pistons
While MAHLE supplies OEM pistons for the HEMI 5.7 and the 6.1L engines, which are cast and designed only to accommodate the OE manufacturers original specifications, the ones supplied to Arrington Manufacturing / ShopHEMI by MAHLE Motorsports are the forged variety.
The following information is useful to help distinguish between...
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New Arrington Edition High Performance Brake Kit
Arrington has partnered with Alcon to bring you a superior high performance brake kit to the HEMI market. This kit fits 5.7L V8 Challenger R/T, Charger R/T, Magnum RT, and Chrysler 300c and is a great bolt-on for owners who want a lot more stopping power...
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New Arrington Edition High Performance Cold Air Intake
The Arrington Carbon Fiber Velocity Cold Air Intake is a custom carbon fiber cold air intake that takes full advantage of the airflow capabilities of our Arrington Signature or cast throttle bodies. Arrington's 5.7 / 6.1 HEM intake can also increase the horsepower output of a stock 85mm throttle setup. Designed for your high horsepower HEMI engine...
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shopHEMI.com True Street Featuring AJ B. & His Dodge Charger
AJ: 6:00pm... Decided to drive my Arrington Performance Charger to the track this weekend to see what she could do. After putting down a all motor, full weight record he then I drove 500 miles back home and picked up some milk on the way.
Read more, to find out how shopHEMI.com helped AJ achieve his record time...
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True Street Featuring Josh R. & His Convertible Challenger
Josh 1:30pm ... my father and I just took the new Convertible Challenger for a spin shortly after arriving at the Arrington Performance / shopHEMI.com facility. WHAT A BEAST! The addition of the new roll bars and supercharger just put this thing over the top. With 640 plus HP at the wheels, and 660ft lbs of torque, our heads stayed glued to the head-rest well into the triple
digits on the speedometer....
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True Street Featuring Mike D. & His Challenger
Mike: 12:00pm... picked up my Challenger at Arrington Performance/shopHEMI.com on Frday and took it to the drag Strip in Richmond, VA for the 2011 Modern Street HEMI Shootout Series. On my 3rd run, I put down a personal best of 9.86 seconds in the 1/4 mile! Arrington Performance has been working with me since September of 2009, and has been there to help me constantly push the limits of my Challenger to evolve it into the 9
second monster that it is today...
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True Street Featuring Sean K. & His 2009 300c
Sean: 5:00pm ... my 300c was just delivered from shopHemi.com. I wanted a sleeper so I chose to keep my stock cam and heads and throw it on a 426 short-block with an Arrington Performance Supercharger. The first drive was insane… this thing has a RIDICULOUS amount of torque that plastered me to my seat when I punched it from a dead stop. They took me from 360 RWHP to over 580RWHP and 688 FT LBS of torque, and this thing still has a
lot of room to grow...
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True Street Featuring Chris H. & His 2009 Jeep Cherokee
Chris: 8:00pm ... Couldn't be happier with my entire experience at shopHEMI.com!! They stand behind their products and have some great ones. I have the 11.3 to 1 HEMI 440 Stroker in my Jeep. The N/A motor is an animal, producing nearly 60 more hp and tq than my previous 426. I made 45 passes at a track rental in my Jeep
and was chirping 2nd and 3rd gear...
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True Street Featuring Rick E. & His 2009 Challenger
Rick: 9:00am ... just picked up my Challenger at shopHemi.com, with a new 426 Stroker and Supercharger. The first drive was absolutely crazy … I smoked the tires when I punched it at 50 mph … when I got back to the shop, AJ and Alex told me my 426 HEMI had over 700+ RWHP! Can hardly wait for the upcoming car shows
and drag races ...
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True Street Featuring Sam H. & His 2009 Challenger
Sam: 11:30pm... just picked up my challenger from shopHEMI, WOW!!!! I'm so impressed. it sounds amazing at idle and when u get on her its a whole different story! 705rwhp / 709rwtq. drove her for 16 hrs straight with NO PROBLEMS. i figured she would boil in traffic, but she peaked at 187. thank u guys, esp alex and aj …
oh, and your barbeque sauce rips too...
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Richard Petty teams with shopHEMI.com to power custom 2009 Dodge Challenger
Martinsville, VA, November 1, 2009. Petty’s Garage, the winningest shop in NASCAR history, takes it to the street – by producing performance daily driver cars for the enthusiast market. Their first car out of the chute is a trademark Petty Blue 2009 Dodge Challenger, rebuilt from the ground up as a performance street car. And where else would “The King” turn to for winning power than shopHEMI.com, home of Arrington engines? ShopHEMI.com supplied a late model 426 HEMI engine that boasts 585 bhp, along with an Arrington 90mm throttle body and Signature cold air intake…
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Dodge Charger SRT8 becomes a 426 HEMI “Autobahn Burner”
“A 426 HEMI powered American muscle car,” Peter S. of Germany thought to himself. “that is what I need.” He was annoyed with “autobahn arrogance,” that down-the-nose look you get from hotshots who blow by at speeds in excess of 130 mph in their Porsches, Mercedes, Audis and Touaregs. "Can you turn my off-the-lot Dodge Charger SRT8 into a machine that can burn up the Autobahn...
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HEMI Power Trip : SRT8 Dodge Challenger - Tons of HP with Bolt-ons
Ricky E. Of Fayetteville, NC loved his 2009 Dodge Challenger SRT8 but wanted a little more power under his right foot, so he brought his ride to shopHEMI.com. Our team of HEMI engineers and engine builders installed a high performance top end including Phase 4 heads...
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HEMI Engine Headquarters Tour
Arrington is continuously introducing innovative new applications for late model American muscle cars, classics and hot rods. The company operates from a 105,000 sq. foot facility that houses the finest race engine development, manufacturing and testing program in the business as well as the cutting edge ShopAmericanMuscle.com family of performance parts websites and their staff. Take the tour...
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Hemi is our Heritage
Stock car racing took a sharp turn for the faster in the '60s when Richard Petty and his pal Buddy Arrington began driving cars powered by a hemispherical combustion chamber engine, AKA "hemi." In 1964, Richard cleaned house with his Plymouth at Daytona and went on to win 7 Daytona 500s. Behind the scenes…
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MOPAR is in our Roots
It all began in 1963 with Buddy Arrington and Car 67. Buddy was an independent NASCAR owner/driver who competed in the Winston Cup series for 25 years, before it became the Nextel Cup. Born near the Martinsville Speedway in Virginia, Buddy began racing as soon as he felt the power of a rear-wheel drive MOPAR...













