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Shop 6.4L Hemi

Unlock the full potential of your 6.4L Hemi, a naturally aspirated powerhouse known for its robust forged internals and strong factory performance. This 392 cubic inch V8 delivers impressive power and torque right out of the box, making it an ideal platform for enthusiasts looking to build reliable, high-performance Mopar machines. At FastHemis, you’ll find a wide range of parts tailored specifically for the 6.4L Hemi. Whether you’re aiming to boost power with supercharger kits, improve exhaust flow with long tube headers, or enhance throttle response with cold air intakes, our selection supports every stage of your build. These upgrades help maximize your engine’s capability while maintaining its legendary durability. Popular 6.4L Hemi upgrades include: - Supercharger and forced induction kits - High-flow exhaust systems and headers - Cold air intakes and throttle body upgrades - Tuners and performance calibration tools Shop 6.4L Hemi upgrades at FastHemis.
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6017 Results

Hays Steel SFI Certified HD Flexplate: Chrysler 300 / Dodge Challenger / Charger / Magnum (05-19)

Hays Steel SFI Certified HD Flexplate: Chrysler 300 / Dodge Challenger / Charger / Magnum (05-19)

Hays
5.0 (1)

Regular price $230.95 $204.95 11% off

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Diablo Sport Platinum Performance Programmer: Chrysler 300 / Dodge Challenger / Charger 2015-2017
Diablo Sport Platinum Performance Programmer: Chrysler 300 / Dodge Challenger / Charger 2015-2017

Diablo Sport Platinum Performance Programmer: Chrysler 300 / Dodge Challenger / Charger 2015-2017

Diablo Sport

Regular price $806.95 $716.95 11% off

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Lakewood Cast Aluminum Bellhousing Kit: Mopar Gen III Hemi to GM 4L80E/4L85E Transmission
Lakewood Cast Aluminum Bellhousing Kit: Mopar Gen III Hemi to GM 4L80E/4L85E Transmission
usa

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 with Leather Grips Steering Wheel: Dodge Challenger / Charger (15-22) - Silver Stitching

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 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: Dodge Challenger (08-22) / Charger (08-22) / Magnum 2008 - Black

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 Silicone Radiator Hose Kit: 300C / Challenger / Charger 6.4L SRT8 2011 - 2014

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
  • Black
  • Blue
  • Red
APS Black SS Billet Grilles (UPPER & LOWER): Dodge Charger (15-23) w/o Adaptive Cruise
APS Black SS Billet Grilles (UPPER & LOWER): Dodge Charger (15-23) w/o Adaptive Cruise

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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Hooker BlackHeart Gen III Hemi Swap SS Headers: Chrysler 300 / Dodge Ram 1500 (03-15)
Hooker BlackHeart Gen III Hemi Swap SS Headers: Chrysler 300 / Dodge Ram 1500 (03-15)

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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Holley EFI Gen III Hemi Hi-Ram EFI Manifold: Fits Most Hemi Models

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 Polished Stainless Upper Mesh Grille: Chrysler 300 2015 - 2024

APS Polished Stainless Upper Mesh Grille: Chrysler 300 2015 - 2024

APS

Regular price $194.40 $155.52 20% off

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Holley EFI Hi-Flow Billet Fuel Rails: Dodge Ram 1500 / Ram 2500 / Ram 3500 (03-10) / Challenger / Charger / Durango (04-21)

Holley EFI Hi-Flow Billet Fuel Rails: Fits Dodge Ram / Challenger / Charger / Durango (03-21)

Holley EFI
5.0 (1)

Regular price $287.95 $230.35 20% off

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Holley Billet Aluminum Power Steering Pump Pulley: Fits most Gen III Hemi 5.7 / 6.4L

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

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Baer Ceramic Brake Pad Set (REAR): Fits Most Hemi Models
usa

Baer Ceramic Brake Pad Set (REAR): Chrysler 300 / Dodge Challenger / Charger (05-14)

Baer

Regular price $85.95 $68.21 21% off

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Stopping Power
Noise Level
Performance Over Stock
Dust Levels
American Brother Designs Interior Knob Covers: Chrysler 300 & Dodge Charger 2015 - 2023
American Brother Designs Interior Knob Covers: Chrysler 300 & Dodge Charger 2015 - 2023
usa

American Brother Designs Interior Knob Covers: Chrysler 300 & Dodge Charger 2015 - 2023

American Brother Designs

Regular price $137.00 $87.00 36% off

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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 Fuse Box Cover: 300 (05-10), Challenger (08-14), Charger (06-10) & Magnum (05-08)
usa

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

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American Brother Designs Radiator Cap Cover: 300, Challenger, Charger & Magnum 2005 - 2014
American Brother Designs Radiator Cap Cover: 300, Challenger, Charger & Magnum 2005 - 2014
usa

American Brother Designs Radiator Cap Cover: 300, Challenger, Charger & Magnum 2005 - 2014

American Brother Designs

Regular price $109.00 $59.00 46% off

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BC Racing BR Coilovers: 2011+ Dodge Durango RWD

BC Racing BR Coilovers: 2011+ Dodge Durango RWD

BC Racing

$1,215.00

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American Brother Designs Washer Fluid Cap Cover: 300, Challenger, Charger & Magnum 2005 - 2014
American Brother Designs Washer Fluid Cap Cover: 300, Challenger, Charger & Magnum 2005 - 2014
usa

American Brother Designs Washer Fluid Cap Cover: 300, Challenger, Charger & Magnum 2005 - 2014

American Brother Designs

Regular price $109.00 $59.00 46% off

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American Brother Designs Auto Concave Shifter Knob: Jeep Wrangler (18-25) & Gladiator (20-25)
American Brother Designs Auto Concave Shifter Knob: Jeep Wrangler (18-25) & Gladiator (20-25)
usa

American Brother Designs Auto Concave Shifter Knob: Jeep Wrangler (18-25) & Gladiator (20-25)

American Brother Designs
5.0 (1)

Regular price $199.00 $149.00 25% off

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American Brother Designs Coolant Recovery Bottle Cap Cover: Jeep Wrangler (18-25) & Gladiator (20-25)
American Brother Designs Coolant Recovery Bottle Cap Cover: Jeep Wrangler (18-25) & Gladiator (20-25)
usa

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

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per 

American Brother Designs Washer Fluid Cap Cover: Jeep Wrangler (18-25) & Gladiator (20-25)
American Brother Designs Washer Fluid Cap Cover: Jeep Wrangler (18-25) & Gladiator (20-25)
usa

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

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per 

American Brother Designs Interior Cup Holder Fill: Jeep Wrangler JL 2018 - 2025
American Brother Designs Interior Cup Holder Fill: Jeep Wrangler JL 2018 - 2025
usa

American Brother Designs Interior Cup Holder Fill: Jeep Wrangler JL 2018 - 2025

American Brother Designs

Regular price $65.00 $15.00 77% off

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per 

CFR Performance Aluminum Oil Filler Tube w/ Baffle - Black
CFR Performance Aluminum Oil Filler Tube w/ Baffle - Black

CFR Performance Aluminum Oil Filler Tube w/ Baffle - Black

CFR Performance

$29.74

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per 

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.

SELECT YOUR VEHICLE