440 Crank in a 383

RustyRatRod said

Same formula but I do it in a different order. BxBxSx785x8. I don't put the 4 at the end. Maybe that's the difference.

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Volume of a cylinder times the number of cylinder (for the newbies)
((Bore² x π / 4) x Stroke) x 8

(4.250² x 3.1416 / 4 ) x 3.750 x 8 = 425.59 and that rounds up to 426 inches cubed.