View single post by Ron Earp
 Posted: 11-16-2005 07:23 pm
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Ron Earp



Joined: 03-12-2005
Location: Cary, North Carolina USA
Posts: 339
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 The chamber volume is typically defined as the area in the head.  Typically, one finds this out by taking a flat piece of plexiglass with a hole in it and putting it on the head surface. Then, one takes colored water and a volumetric buret and fills the chamber up. The amount of liquid it takes is the volume and can be corrected for the head gasket thickness.

SB Ford heads range from about 50cc to 75cc, with 58cc and 60cc being common. I imagine the 907 head is around 60cc or so as just a guess. 

One could back calculate it based on compression ratio and swept volume, since you know the swept volume of one cylinder is 492cc as provided above, and the compression ratio is 8.4:1, then 492cc / 8.4 is 58cc.

Dang, my guess wasn't too bad!