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Old 10-31-2010, 02:42 PM   #4
Dwight Southerland
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Default Re: combustion chamber volume

An easy way to get in the ball park is to assemble the head, set it up so the combustion chamber surface is level (use a short carpenter's level and check it several planes), then fill the combusition chamber with the correct volume fluid (76 cc). Use a depth mike or a dial indicator on a bridge that is zeroed to the head surface and measure to the surface of the fluid. Do this on all the combustion chambers and figure an average. Subtract about .003" to account for the miniscus shape of the fluid in the chamber and have the machine shop cut that much. It will get you within .5 cc every time. Works on any head, not just a SBC.
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