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Glen’s Hellcat makes 1463.84 RWHP and 1309.91 TQ

Glen’s supercharged Challenger

*Photo’s credits are to Mike Pryka Photography, Mike O’Malley, and Jonathan Salmi Photography.

Barth Tuning has produced one very special vehicle using one of our A2speed /Ray Barton 426 HEMI engines. This engine has a billet rotating assembly in a stock iron hellcat block. The short block features a billet Winberg stroker crank, Callies ultra rods, custom Diamond pistons, and Billet main caps. The top end of the motor features our A2speed / Thitek ported hellcat heads, and a custom A2Speed boosted camshaft. Top all of these powertrain goodies with a 300 shot of nitrous and Barth tunings E85 package and you have a Hellcat that crawled out from the deepest darkest corner of hell with one goal, to shatter records. It’s already set two, as of 5/27/17 when we are writing this article, it’s the most powerful hellcat in the world, and it holds the fastest halfmile speed of any hellcat at 190 mph (Using only a 150 shot). Later this fall Glen is going back to Barth for a 4.7L mammoth Kenne Bell supercharger.

Glen’s HEMI Performance Parts

  • A2Speed / Ray Barton 426 HEMI
    • ARP Main & Head Studs
    • Billet Main Caps
    • Callies Ultra Rods
    • Winberg Crankshafts Billet Stroker Crank
    • A2Speed Custom Blower Cam
    • Custom High Boost Dimond Pistons
    • A2Speed / Thitek Hellcat Ported Heads w/PSI 1511 Springs
    • Custom Length Trend Pushrods
  • 10% OD ATI Hellcat Super Damper
  • ID 1700 injectors
  • Ported and polished super charger
  • Metco 2.75" upper supercharger pulley
  • FORE Hellcat L4 Triple Pump Fuel System
  • Snow Performance 310 water/methanol injection system
  • Full American Racing Headers Exhaust System
  • Paramount Performance Transmission & Converter
  • Drive Shaft Shop 9” Rear End Conversion
  • A2Speed/Viking front and rear 3-way adjustable drag shocks
Glen's Car
HEMI Performance Parts

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

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.

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!


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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