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James L Miller · 06-24-2012, 09:43 AM

I think the spark plug tube spacing makes it obvious. I don't know of another head that the plugs are paired like that. The newer Chrysler Hemi heads like the PS and PST heads have the center cylinders paired together and the ends spread apart.

06-24-2012, 09:43 AM	#3
James L Miller Member Join Date: Apr 2005 Posts: 494 Likes: 6 Liked 25 Times in 16 Posts	Re: Old Race Parts and Pieces I think the spark plug tube spacing makes it obvious. I don't know of another head that the plugs are paired like that. The newer Chrysler Hemi heads like the PS and PST heads have the center cylinders paired together and the ends spread apart. __________________ Mopar 2 Ya!