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Quote:
Originally Posted by 1947 ford
4 inch stroke bored 3.250 with the pistons marked .040.
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We sorta have an oxymoron here. You say you have a 3.25" bore, yet a 0.040" overbore equals an actual bore of 3.227". Is it possible you mis-measured that 3.25" by a few thousandths? Nevertheless, if the bore is 3.227", the displacement computes-out to 261.72 cu. in. Now if the bore is actually 3.25", that computes to 265.46 cubic inches. DD