Heads with angle plugs
Race Director
Joined: May 2006
Posts: 18,729
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this article should answer your question, i have the early 492 heads they mention
http://www.carcraft.com/techarticles...tion_chambers/
http://www.carcraft.com/techarticles...tion_chambers/
Tech Contributor
Joined: Aug 1999
Posts: 14,379
Likes: 6,390
From: At my Bar drinking and wrenching in Lafayette Colorado
In addition to the excellent explanation by Marlan in that article, angle plug heads can also provide some spark plug clearance advantages when running headers, depending on the header design in use. 
Lars
Lars
