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Old 10-29-2010, 12:23 AM   #2
rawhide
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Default Re: combustion chamber volume

Quote:
Originally Posted by Bobby Zlatkin View Post
sbc 76cc head.

Approx. how much needs to be removed from the deck surface to reduce the chamber volume 1cc? I know it's not an exact ratio as when you get deeper into the chamber you have to cut more to remove a cc. Just looking for a general rule of thumb.

Trips back & forth to the machine shop are both costly and labor intensive.

Thanks
Bobby,
It is difficult to pin down an exact figure but I have found it usually takes .006"-008" to remove 1 cc when the head is virgin. I realize that the word virgin is never used around the drag strip but I am using it anyway.
thanks, Roland
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