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Originally Posted by jrp so does this mean if you have 806 casting heads then you have 9.6 CR  |
It depends on head gasket thickness. Some production changes were made from year to year. For example, cars equipped with the 806 heads used composition head gaskets that compressed to approx. .040". While later cars used a .010" thicker MLS gasket. It only takes .005" to change 1cc with piston deck height or head gasket.
Hope this helps.
Richard
