Factory bore size - 351 - Off-Road Forums & Discussion Groups
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post #1 of (permalink) Old 10-20-1999, 04:47 AM
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Factory bore size - 351

I'm trying to find out the EXACT bore size for the 351W & 351C.
Anyone know??????

Thanx
KiwiZuk

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post #2 of (permalink) Old 10-21-1999, 08:13 AM
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Re: Factory bore size - 351

I have always seen the 351W listed as 4.00 (in inches!) as bore diameter.

Doing the math, where area of a circle is pie x radius squared = 3.146 x 2 x 2 = 12.584 inches bore area.

Then taking the 12.584 x 3.5 (the stroke of a 351W) = 44.044 cubic inches, then x 8 cylinders = 352.352 cu. in.

I've always believed they called the "351's" a "351" for marketing purposes, to show "new and improved" over Ford's previous-design engine in this cubic inch class, which was the 352 (us older folks remember 289 - 352 - 390 for Fords). I know the 352 was around in '64.

Well, if that's not what you were looking for, at least you got some "boring" history! (yuk, yuk, yuk!)

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