5.7L and 6.4L Hemi Engines: Key Differences and Performance Potential

The 5.7L Hemi, a staple in models like the Ram 1500 and Charger, delivers around 375-395 HP stock, excelling in daily driving and towing.

The 6.4L Hemi ups the ante with 410-485 HP, ideal for high-torque applications in Challengers or Wranglers.

Key differences? The 6.4L boasts a larger displacement for superior low-end grunt, while both share hemispherical combustion for efficient power.

Unlock their full potential with our 5.7L and 6.4L Hemi engine performance upgrades – shop now with free shipping!

Top Performance Upgrades for 5.7L and 6.4L Hemi Engines

Boost reliability and efficiency with essentials like the 5.7 and 6.4L Hemi oil catch can.

These prevent oil vapor from contaminating your intake, reducing carbon buildup for cleaner combustion and extended engine life.

Owners report 3-5% better fuel economy – perfect for your oil catch can Dodge Charger/Challenger/Chrysler 300.

Priced from $49.99, our best oil catch can for 5.7 and 6.4 Hemi is rigorously tested for durability, backed by our 1-year warranty.

Intake and Exhaust Modifications for Increased Power

Elevate airflow with a 5.7 Hemi intake manifold. Our 5.7 Hemi intake manifold upgrade optimizes runner length for even distribution, adding 10-20 HP.

Compatible with 2003, 2005 Dodge Ram 1500, 2006 Chrysler 300, and more. Pair with exhaust mods like long tube headers for reduced backpressure and aggressive sound.

Starting at $257.58, these deliver real gains without breaking the bank.

Essential Engine Internals and Component Upgrades

For precise maintenance, grab our 5.7 or 6.4 Hemi valve spring compressor. These tools simplify swaps in Dodge Hemi valve spring compressor setups, ensuring safety and efficiency during upgrades.

Works seamlessly with the Ram 1500 valve spring compressor. Our pros with 10+ years in mods recommend it for internals, preventing common pitfalls.

Tuning and Calibration: Unlocking Maximum Horsepower

Fine-tune with calibration tools to maximize HP – our kits support up to 500+ HP safely.

EGR Performance Quality Assurance and Compatibility for Hemi Parts

Trust our industry-certified parts, backed by customer success stories and expert support. High-value pricing ensures long-term savings on maintenance.

• Oil Catch Can for 5.7L 6.4L HEMI 2011-2021 Dodge Charger Challenger Chrysler 300
• Exhaust Manifold Header for 2006-2017 Dodge RAM 1500 5.7L V8 HEMI Engines
• Exhaust Manifold Headers for 2008-2010 Dodge Challenger 5.7L
• POW352003 Valve Spring Compressor Tool for Dodge Ram 2500 3500 5.7L 6.1L 6.2L 6.4L HEMI Cummins

Upgrade today – superior quality, unbeatable value!

Frequently Asked Questions

Q: Are a Hemi and a V8 the same?

A: No, a V8 engine has eight cylinders arranged in a "V" shape, whereas a "Hemi" refers to the hemispherical shape of the combustion chamber. While a Hemi engine is typically a V8, not every V8 engine features a Hemi design, as V8s can have various combustion chamber configurations.

Q: Will 6.4 Hemi heads fit 5.7 Hemi?

A: The 6.4 Hemi heads can fit on a 5.7 Hemi with modifications, but it's important to consult professionals or experienced mechanics before making the swap.

Adjustments such as porting, new gaskets, and sometimes reprogramming may be necessary for optimal performance.

Q: How much boost can a stock 5.7 Hemi handle?

A: A stock 5.7 Hemi can safely handle about 5 to 7 PSI of boost. Going beyond this range without supporting modifications, such as stronger internals or upgraded fuel systems, could risk damaging the engine.

Q: What are common mistakes when upgrading Hemi performance parts?

A: Common mistakes when upgrading Hemi performance parts include skipping the necessary tuning after installation and improper installation of components.

Failing to properly tune the engine can lead to poor performance or even damage, while improper installation can cause malfunction or engine failure.

Q: What tuning options are available for 5.7L and 6.4L Hemi engines?

A: For both 5.7L and 6.4L Hemi engines, custom tuning programmers like AFE, DiabloSport, FAST, Livernois Motorsports, and ProCharger are available that can unlock up to 50 extra horsepower.

These tuners adjust the ECU for better fuel mapping, timing, and other performance parameters, which can significantly improve the engine's output.