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hemi heads

11K views 8 replies 6 participants last post by  CWRacing 
#1 ·
What does the dish do that is milled into the later high hemi heads? I have the old 4.900" bore space high hemi that don't have the dish.
 
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#5 ·
I've seen some of the later Ford hemi prostock heads that have the same combustion chamber as our heads but they have a dish that's been milled into them that sort-of mimics the old a441 Ford hemi prostock heads true hemi chamber. I was wondering why the current prostock stuff had the dish. This is obviously a modification that wasn't used on the earlier high hemi b441 prostock heads.
 
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