Originally posted by nefarious7907
If hemispherical shaped heads were really all that you would seem them a lot more in performance vehicles, but some top fuel dragsters run wedge heads (true, most are hemi's, but not all of them), and F1 doesn't run hemispherical heads because hemi's limit you to one intake and one exhaust valve, so now dual+ valve will ever have a hemi.
If I can snag the DVD we made from my brother-in-law I'll try and post some of them online.
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