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57 Hemi Engine Build

Why does a nearstock new Hemi make so much power? The key is in the heads, with unobstructed ports leading to the opposed-valve layout. As the valves open, they are directed  toward the bore'scenterline, eliminating the effects of bore shrouding. Note the Hemi's dual plug arrangement.
5.7L Hemi Engine Build - Modern Mopar Muscle

Why does a nearstock new Hemi make so much power? The key is in the heads, with unobstructed ports leading to the opposed-valve layout. As the valves open, they are directed toward the bore'scenterline, eliminating the effects of bore shrouding. Note the Hemi's dual plug arrangement.  View Related Article

 

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