6.4L HEMI MMX Performance Camshaft Installed NA Long Block
Take your naturally aspirated HEMI build to the next level with the 6.4L HEMI MMX Performance Camshaft Installed NA Long Block. Built for enthusiasts seeking increased power, enhanced throttle response, and improved engine performance, this professionally assembled long block combines the proven strength of the 6.4L HEMI platform with the performance benefits of an MMX camshaft upgrade. Designed for reliability and performance, it provides an outstanding foundation for street, strip, and high-performance vehicle builds.
The heart of this package is a precision-built 6.4L HEMI long block equipped with an MMX Performance Camshaft specifically designed for naturally aspirated applications. The upgraded camshaft profile improves airflow and engine efficiency, helping maximize horsepower and torque throughout the RPM range. The result is stronger acceleration, improved engine response, and a more aggressive performance character.
Every long block is assembled using premium-quality components and precision machining processes to ensure exceptional durability and reliability. Critical engine tolerances are carefully maintained to deliver consistent performance under demanding driving conditions. Whether installed in a Dodge Charger, Challenger, Chrysler 300, Jeep, RAM, or custom Mopar project, this engine is built to provide years of dependable service.
The MMX Performance Camshaft not only improves performance but also delivers a more aggressive idle and enhanced exhaust note. Enthusiasts appreciate the distinctive sound and increased driving excitement that come with a properly matched performance camshaft. The naturally aspirated configuration eliminates the complexity of forced induction while still providing impressive performance gains.
Ideal for performance enthusiasts, restoration projects, engine swaps, and custom builds, this long block offers a turnkey solution for those seeking upgraded HEMI power. Its combination of factory-inspired reliability and aftermarket performance engineering makes it a popular choice among serious Mopar enthusiasts.
Product Specifications
| Feature | Description |
|---|---|
| Product Name | 6.4L HEMI MMX Performance Camshaft Installed NA Long Block |
| Engine Displacement | 6.4 Liters |
| Engine Type | HEMI V8 |
| Configuration | Naturally Aspirated |
| Camshaft | MMX Performance Camshaft Installed |
| Assembly Type | Complete Long Block |
| Performance Benefit | Increased Horsepower and Torque Potential |
| Engine Character | Enhanced Throttle Response and Aggressive Idle |
| Construction | Precision-Assembled Performance Engine |
| Application | Street, Performance, and Custom Builds |
| Compatibility | Select Dodge, Chrysler, Jeep, and RAM Applications |
| Condition | Professionally Built |
Frequently Asked Questions
| Question | Answer |
|---|---|
| What is included in a long block engine? | A long block typically includes the engine block, rotating assembly, camshaft, cylinder heads, and major internal engine components assembled and ready for installation. |
| What makes the MMX camshaft different? | The MMX camshaft is designed to improve airflow, enhance power delivery, and provide a more aggressive engine personality. |
| Is this engine naturally aspirated? | Yes. This long block is specifically built for naturally aspirated performance applications. |
| Will the camshaft affect engine sound? | Yes. The performance camshaft produces a more aggressive idle and enhanced exhaust tone. |
| Can this engine be used in a custom build? | Absolutely. It is an excellent choice for swaps, restorations, and high-performance Mopar projects. |
| Is this suitable for daily driving? | Yes. When properly installed and tuned, it can provide excellent drivability while delivering enhanced performance. |
| Is professional installation recommended? | Yes. Professional installation helps ensure proper setup, reliability, and optimal engine performance. |
Upgrade your vehicle with the 6.4L HEMI MMX Performance Camshaft Installed NA Long Block and experience the perfect combination of legendary HEMI power, professional engine assembly, and MMX performance engineering designed to deliver exceptional results on the street and at the track.
Blake Harrington –
This was my first order from Dodge Auto Supply, and I purchased the 6.4L MMX camshaft-installed long block for my 2018 Charger build. The ordering process was smooth, and shipping updates were reliable. The engine arrived on a solid pallet with no issues. My shop installed it quickly, and startup was flawless. The camshaft gives the engine a noticeable lope and much stronger mid-range power. After tuning, the car feels completely different—faster, louder, and more aggressive. Very satisfied with this upgrade.
Rowan Ellison –
I ordered this cammed 6.4L long block for my Challenger project in Alberta, and Dodge Auto Supply exceeded expectations. The engine arrived safely packaged and well secured. My mechanic inspected it and confirmed the build quality was excellent. Installation went smoothly, and the engine started right away. The camshaft gives it a strong performance tone, and power delivery feels much improved. The car now feels more aggressive and responsive under acceleration. This was a perfect upgrade for my setup.
Kellan Whitaker –
I bought the MMX Performance Camshaft Installed 6.4 HEMI long block for my Scat Pack in Arizona, and I’m very impressed. The ordering process was easy, and shipping was quick for such a large engine. The pallet arrived intact, and the engine looked professionally built. My performance shop installed it, and everything fit perfectly. After startup, the cam profile gave the engine a deep, aggressive sound that I love. Once tuned, the car feels much faster and more responsive, especially in the mid-range. This is a serious upgrade for any 6.4 build.
Dalton Mercer –
I purchased the MMX camshaft-installed 6.4 HEMI long block for my Challenger build in Ontario, and Dodge Auto Supply delivered a great experience. The engine arrived well packaged on a reinforced pallet, and everything looked professionally assembled. My mechanic inspected the long block before installation and was impressed with the cleanliness and pre-installed cam setup. Installation went smoothly, and once the engine was started, it had a deep aggressive idle that immediately stood out. After tuning, the power delivery became much stronger across the entire RPM range. The car feels far more responsive and enjoyable to drive. This was a perfect upgrade for my build.
Mason Holloway –
I ordered this 6.4L MMX cammed long block for my 2020 Charger R/T upgrade project, and the experience was excellent. Dodge Auto Supply made ordering simple, and shipping updates were accurate throughout. The engine arrived in perfect condition and was very well protected. My shop installed it without any issues, and startup was instant. The camshaft gives the engine a strong, aggressive tone at idle, and performance feels significantly improved. Throttle response is sharp, and the car pulls harder than stock in every gear. This is exactly the level of performance I wanted.
Carter Ellington –
I ordered the 6.4L HEMI MMX Performance Camshaft Installed NA Long Block from Dodge Auto Supply for my 2019 Dodge Charger Scat Pack after my original engine developed lifter damage. The ordering process was straightforward, and the product details clearly explained what was included, which helped me feel confident before purchasing. Shipping was faster than expected, and the engine arrived securely strapped to a pallet with no damage. My performance shop inspected everything before installation and confirmed the build quality was excellent. Once installed, the engine fired up cleanly and immediately sounded stronger and more aggressive. The cam setup gave it a noticeable lope at idle, and throttle response improved right away. After break-in and tuning, the car feels completely transformed with stronger mid-range pull and much better top-end power. It drives smooth but aggressive, exactly how a performance build should feel. I’m very satisfied with the results and service.
Easton Caldwell –
I ordered the MMX cammed 6.4 HEMI long block for my Scat Pack rebuild, and Dodge Auto Supply delivered great service. The engine arrived securely packaged and looked top quality. My installer had no issues during the swap, and everything lined up perfectly. Once started, the engine sounded incredible with a deep cam lope. After tuning, performance improved dramatically, especially in mid and high RPMs. The car feels much more powerful and fun to drive. This was a great investment for my build.