1. Feb 25, 2024 at 10:15 AM #1
   

   SRT-Tom Well-Known Member Staff Member Super Moderator Article Writer

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   Here is an interesting HEMI head flow comparison between the 5.7 and 6.4.
   
   

    

   Chuckv and 6speed8 like this.
2. Feb 26, 2024 at 12:35 PM #2
   

   6speed8 Member

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   Interesting. The biggest advantage of the 6.4L heads over the 5.7L ones appears to be in the exhaust flow.

    
3. Mar 17, 2024 at 11:55 PM #3
   

   Moparisto Full Access Member

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   Exhaust flow becomes more important in a supercharged engine, as you can see from the cam spec differences between a 6.2 Hellcat engine and a 6.4.

    

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