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Bolt and Stud Kits

Replace your stock bolts with a high strength stud kit that can hold up to extremely high levels of power. 
 

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ARP Head Stud Kit for 5.7L, 6.1L, and 6.4L HEMI's
ARP Head Stud Kit for 5.7L, 6.1L, and 6.4L HEMI's
ARP QualityARP was the first company to design and engineer fasteners specifically for racing. ARP developed many patented process for... 
Price:$398.95
SKU:ARP-244-4300
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ARP Main Stud Kit for 5.7L, 6.1L, and 6.4L HEMI's
ARP Main Stud Kit for 5.7L, 6.1L, and 6.4L HEMI's
ARP QualityARP was the first company to design and engineer fasteners specifically for racing. ARP developed many patented process for... 
Price:$175.95
SKU:ARP-244-5400
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ARP Pro Series Cylinder Head Bolt Kit for 5.7L, 6.1L, and 6.4L HEMI's
ARP Pro Series Cylinder Head Bolt Kit for 5.7L, 6.1L, and 6.4L HEMI's
ARP QualityARP was the first company to design and engineer fasteners specifically for racing. ARP developed many patented process for... 
Price:$286.95
SKU:ARP-147-3901
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ARP Torque Converter Bolt Kit for 5.7L, 6.1L, and 6.4L HEMI's
ARP Torque Converter Bolt Kit for 5.7L, 6.1L, and 6.4L HEMI's
ARP QualityARP was the first company to design and engineer fasteners specifically for racing. ARP developed many patented process for... 
Price:$19.95
SKU:ARP-147-7301
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MOPAR 6.1L Fuel Rail Bolts (Set of 4) (5.7L/6.1L/6.4L HEMI Engines) 6102024
MOPAR 6.1L Fuel Rail Bolts (Set of 4) (5.7L/6.1L/6.4L HEMI Engines) 6102024
MOPAR 6.1L Fuel Rail Bolts (Set of 4) (5.7L/6.1L/6.4L HEMI Engines)Set of 4 Genuine MOPAR Fuel Rail Bolts 
Price:$5.00
SKU:MPR-06102024
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Mopar 6.1L Header Bolts (Set of 16) 6503131
Mopar 6.1L Header Bolts (Set of 16) 6503131
Mopar 6.1L Header Bolts (Set of 16) Set of 16 Genuine MOPAR EXHAUST MANIFOLD BOLTS 
Price:$25.95
SKU:MPR-6503131
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Mopar 6.1L Intake Manifold Bolt 6508208AA
Mopar 6.1L Intake Manifold Bolt 6508208AA
Mopar 6.1L Intake Manifold BoltInstalling a 6.1L Intake Manifold, these are the Bolts that you will need to hold the intake to your... 
Price:$6.95
SKU:MPR-6508208AA
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Mopar 6.1L Throttle Body Bolt 6101770
Mopar 6.1L Throttle Body Bolt 6101770
Mopar 6.1L Throttle Body BoltGenuine MOPAR OEM part. Throttle Body Bolt. Sold as each - 4 required per throttle body. 
Price:$1.95
SKU:MPR-6101770
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Mopar Cam Bolt (5.7L VVT/6.4L VVT HEMI Engines) 6102430AA
Mopar Cam Bolt (5.7L VVT/6.4L VVT HEMI Engines) 6102430AA
Mopar Cam Bolt (5.7L VVT/6.4L VVT HEMI Engines) If you are replacing your cam in your HEMI, you may need one of these if you have... 
Price:$3.95
SKU:MPR-6102430AA
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Mopar Cam Bolt (5.7L/6.1L HEMI Engines) 6507480AA
Mopar Cam Bolt (5.7L/6.1L HEMI Engines) 6507480AA
Mopar Cam Bolt (5.7L/6.1L HEMI Engines)If you are replacing your cam in your HEMI, you may need one of these if you have problems... 
Price:$3.95
SKU:MPR-6507480AA
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Mopar Crankshaft Bolt 14mm Thread (5.7L/6.1L/6.4L HEMI Engines) 6506340AA
Mopar Crankshaft Bolt 14mm Thread (5.7L/6.1L/6.4L HEMI Engines) 6506340AA
Mopar Crankshaft Bolt 14mm Thread (5.7L/6.1L/6.4L HEMI Engines)Mopar 5.7L/6.1L Crankshaft Bolt 14mm Thread.  
Price:$9.95
SKU:MPR-6506340AA
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Mopar Hellcat Fasterner Kit 68271009AA
Mopar Hellcat Fasterner Kit 68271009AA
Mopar Hellcat Fastener KitGenuine Mopar Hellcat Fastener Kit  
Price:$156.00
SKU:MPR-68271009AA
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Mopar OEM Axle Nut SP196724AB
Mopar OEM Axle Nut SP196724AB
MOPAR OEM 6.2L Hellcat Spark PlugStock OEM replacement spark plug for 6.2L SRT Hellcat engines. This is one individual spark plug! 
Price:$5.95
SKU:MPR-SP196724AB
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Mopar Oil Pan Bolts, Pan to Block (Set of 19) 5037634AC
Mopar Oil Pan Bolts, Pan to Block (Set of 19) 5037634AC
MOPAR Oil PanNeed to freshen up the bottom end of your 6.1L or 6.4L? Look no further. This Genuine Mopar stock oil pan should do the... 
Price:$268.95
SKU:MPR-5037634AC
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Mopar Oil Pump to Block Bolt (Set of 4) 5038172AA
Price:$2.95
SKU:MPR-5038172AA
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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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