08-11-2009, 07:44 AM
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#3 (permalink)
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A True Z Fanatic
Join Date: Jun 2009
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Quote:
Originally Posted by Modshack
Piston shape is different......Taller actually which usually results in Valve pockets being machiined into the Piston tops for valve clearance whle the outside circumference or the center area is taller. They are generally shaped to come up into the combustion chamber therefore compressing the air more..
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Right, but by the same notion, wouldn't there also be a reduction in the internal volume of the cylinder by the same amount due the piston shape difference?
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