WHY IS SPARK PLUG IN CENTER OF CYLINDER HEAD

  • Tiny
  • car4424
  • 1964 Dodge
  • 100,000 miles

The hemi engine has spark plugs that go through the valve cover. Why is it that I see GM and Ford engines doing the same thing now on almost all engines? If putting the spark plug in the center or the head is better why did GM and Ford wait so long?

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Sunday, January 8th, 2012 AT 7:14 PM

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  • Tiny
  • fixitmr
  • Member

Better combustion, more complete.

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Sunday, January 8th, 2012 AT 7:22 PM

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