Shop 6.4L Hemi
Hays Steel SFI Certified HD Flexplate: Chrysler 300 / Dodge Challenger / Charger / Magnum (05-19)
Hays
Regular price
$230.95
$204.95
11% off
- Unit price
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Melling Hi-Perf Valve Spring Shims .015: Fits Chrysler / Dodge / Jeep / Ram (02-26)
Melling
$26.99
- Unit price
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Diablo Sport Platinum Performance Programmer: Chrysler 300 / Dodge Challenger / Charger 2015-2017
Diablo Sport
Regular price
$806.95
$716.95
11% off
- Unit price
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Melling Hi-Perf Chromoly Valve Spring Shim .030: Fits Chrysler / Dodge / Jeep / Ram (02-26)
Melling
$26.99
- Unit price
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Lakewood Cast Aluminum Bellhousing Kit: Mopar Gen III Hemi to GM 4L80E/4L85E Transmission
Lakewood
Regular price
$843.95
$749.95
11% off
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Drake Muscle Cars Carbon Fiber w/ Leather Grips Steering Wheel: Dodge Challenger / Charger (15-23)
Drake Muscle Cars
Regular price
$1,094.95
$729.95
33% off
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Drake Muscle Cars Alcantara Wrapped Steering Wheel: Dodge Challenger / Charger (15-22) - Black
Drake Muscle Cars
Regular price
$1,325.95
$648.36
51% off
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Drake Muscle Cars Billet Aluminum Strut Tower Brace (FRONT): Dodge Magnum / Charger / Challenger
Drake Muscle Cars
Regular price
$492.95
$437.95
11% off
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HPS Silicone Radiator Hose Kit: 300C / Challenger / Charger 6.4L SRT8 2011 - 2014
HPS
Regular price from $300.00 Up to 13% off
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3 colors
APS Black SS Billet Grilles (UPPER & LOWER): Dodge Charger (15-23) w/o Adaptive Cruise
APS
Regular price
$118.13
$94.50
20% off
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SCAT Crankshafts Modern Muscle Engine Rotating Assembly: Fits Chrysler / Dodge / Jeep / Ram (02-26)
SCAT Crankshafts
$2,643.99
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SCAT Crankshafts Modern Muscle Engine Rotating Assembly Kit: Fits most Hemi 5.7 / 6.1 / 6.2 / 6.4L
SCAT Crankshafts
$3,073.99
- Unit price
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Hooker BlackHeart Gen III Hemi Swap SS Headers: Chrysler 300 / Dodge Ram 1500 (03-15)
Hooker BlackHeart
Regular price
$922.95
$819.95
11% off
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SCAT Forged 4340 Steel Pro Comp I-Beam Connecting Rods Set: Chrysler / Dodge / Jeep / Ram (03-23)
SCAT Crankshafts
$548.99
- Unit price
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Holley EFI Gen III Hemi Hi-Ram EFI Manifold (Black): Fits Chrysler / Dodge / Jeep / Ram (05-26)
Holley EFI
Regular price
$1,631.95
$1,303.95
20% off
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APS Polished Stainless Upper Mesh Grille: Chrysler 300 2015 - 2024
APS
Regular price
$194.40
$155.52
20% off
- Unit price
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PRW SFI-Rated Racing Dampers: Fits Most Chrysler / Dodge / Jeep / Ram 5.7L-6.4L Hemi Engines
PRW
$273.18
- Unit price
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PRW Rocker Arm Shaft Support Kit: Fits Chrysler / Dodge / Jeep / Ram 5.7L-6.4L Hemi w/ Hardware
PRW
$119.75
- Unit price
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PRW Platinum Series SS Shaft-Mount Rocker Arms Kit: Fits Chrysler / Dodge / Jeep / Ram (02-26)
PRW
$742.48
- Unit price
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PRW Sportsman Steel Foot Style Rocker Arms Set: Fits Chrysler / Dodge / Jeep / Ram (02-26)
PRW
$386.91
- Unit price
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PRW Steel Rocker Arm Shafts Set: 5.7L Hemi / 6.1L SRT8 / 6.4L 392 / 6.2L Hellcat & Trackhawk Engines
PRW
$329.18
- Unit price
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Holley EFI Hi-Flow Billet Fuel Rails: Fits Dodge Ram / Challenger / Charger / Durango (03-21)
Holley EFI
Regular price
$287.95
$230.35
20% off
- Unit price
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Holley Billet Aluminum Power Steering Pump Pulley: Fits most Gen III Hemi 5.7 / 6.4L
Holley
Regular price
$142.95
$114.25
20% off
- Unit price
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Baer Ceramic Brake Pad Set (REAR): Chrysler 300 / Dodge Challenger / Charger (05-14)
Baer
Regular price
$85.95
$68.21
21% off
- Unit price
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American Brother Designs Interior Knob Covers: Chrysler 300 & Dodge Charger 2015 - 2023
American Brother Designs
Regular price
$137.00
$87.00
36% off
- Unit price
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American Brother Designs Fuse Box Cover: 300 (05-10), Challenger (08-14), Charger (06-10) & Magnum (05-08)
American Brother Designs
Regular price
$219.00
$169.00
23% off
- Unit price
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American Brother Designs Radiator Cap Cover: 300, Challenger, Charger & Magnum 2005 - 2014
American Brother Designs
Regular price
$109.00
$59.00
46% off
- Unit price
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American Brother Designs Washer Fluid Cap Cover: 300, Challenger, Charger & Magnum 2005 - 2014
American Brother Designs
Regular price
$109.00
$59.00
46% off
- Unit price
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American Brother Designs Auto Concave Shifter Knob: Jeep Wrangler (18-25) & Gladiator (20-25)
American Brother Designs
Regular price
$199.00
$149.00
25% off
- Unit price
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American Brother Designs Coolant Recovery Bottle Cap Cover: Jeep Wrangler (18-25) & Gladiator (20-25)
American Brother Designs
Regular price
$109.00
$59.00
46% off
- Unit price
- /per
American Brother Designs Washer Fluid Cap Cover: Jeep Wrangler (18-25) & Gladiator (20-25)
American Brother Designs
Regular price
$109.00
$59.00
46% off
- Unit price
- /per
American Brother Designs Interior Cup Holder Fill: Jeep Wrangler JL 2018 - 2025
American Brother Designs
Regular price
$65.00
$15.00
77% off
- Unit price
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CFR Performance Aluminum Mopar Hemi Gen 3 90° Water Neck Thermostat Housing: Fits Most Hemi Models
CFR Performance
$37.22
- Unit price
- /per
CFR Performance Aluminum Supercharger Head Adapter Plates: Fits 5.7L Hemi & 6.4L 392 2011+
CFR Performance
$375.00
- Unit price
- /per
CFR Performance Hellcat Conversion Valve Covers: Fits All 5.7L Hemi, 6.1L SRT8, 6.4L 392 & 6.2L Hellcat
CFR Performance
$439.00
- Unit price
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AMP Research Replacement Controller Xtreme Type A: Fits Jeep Wrangler / Gladiator / Ram (07-23)
AMP Research
$99.99
- Unit price
- /per
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Performance Upgrades for Your 6.4L 392 Hemi
The 6.4L 392 Hemi is a naturally aspirated powerhouse known for its strong forged internals and high-flow cylinder heads. Delivering robust power and torque from the factory, it provides an excellent platform for enthusiasts aiming to enhance performance while maintaining reliability. At FastHemis, you’ll find parts designed specifically to unlock the full potential of this Mopar favorite.
Why upgrade performance parts on your 6.4L Hemi?
Upgrading your 6.4L Hemi’s components can significantly improve power delivery, throttle response, and overall engine efficiency. Whether you want to increase airflow with cold air intakes or extract more power through long tube headers and exhaust systems, these bolt-on upgrades complement the engine’s strong factory foundation. Enhancements also help tailor your build to specific driving styles and performance goals.
- Improved air and exhaust flow for better combustion
- Enhanced throttle response and engine sound
- Supports future forced induction or camshaft upgrades
- Maintains the engine’s legendary durability and reliability
Popular upgrade paths for the 6.4L 392 Hemi
The 6.4L Hemi responds well to a variety of performance modifications that suit naturally aspirated and boosted builds alike. Common upgrades include supercharger and procharger kits for substantial power gains, long tube headers to reduce exhaust backpressure, and cold air intakes to increase airflow. Tuners and performance calibration tools are also essential to optimize these modifications and ensure smooth operation.
Choosing the right 6.4L Hemi parts at FastHemis
FastHemis offers a comprehensive selection of performance parts tailored to the 6.4L 392 Hemi. Whether you’re starting with bolt-ons or planning a full build, our inventory supports every stage of your project. Browse our collection to find supercharger kits, exhaust upgrades, intake systems, and tuning tools designed to maximize your engine’s capability while preserving its durability.