At 11:15 PM 1/19/2002 EST, you wrote:
>Is it possible to positively determine if a engine is a 260 or a 289 without
>pulling a head? My book on Ford engines has conflicting information. The
>casting number is: C40E-6015F. I can't find any numbers on the heads except
>for the number 5A26 along side the valve springs. Where should I be looking?
>Thanks in advance for any help.
>
> Bob Lerch
> B382001828LRXFE
>
Bob,
Pull the oil pan and measure the bore. If 4" bore then it is not a 260.
If it has 6 bolt transmission mounting, it is not a 260. So if it has a 4" bore
and a 6 bolt transmission housing it may be either a 289 or 302. The very early
289 had 5 bolt transmission mounting like a 260. The later 302 had ~50 oz
unbalance. The weight cast into the flywheel is larger than the ~28 oz used
on the
221,260 or 289.
NASCAR uses a tool that determines displacement simply by screwing the
tool in a spark plug hole and cranking the motor over. Do not know exactly how
it works.
James Barrett Tiger II 351C and others
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