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what eng tranny

1957 - 1960 F100 & Larger F-Series Trucks Discuss the Box Style Ford Trucks

what eng tranny

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Old

Dec 23, 2012 | 11:18 PM

#1

rgoodell

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what eng tranny

57 f100 short wide eng room empty I want it to be a dd so mileage is important I have an early 70s 390 c6 thinking about other options 4.6 aod ?

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Old

Dec 24, 2012 | 12:23 AM

#2

Fomoko1

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As much as I really love my FE engines they`re not the ones for any real fuel economy so you`d be much further ahead with the 4.6 and the AOD. I remember the 223`s were fairly respectable on fuel mileage, at least in cars. You`ll need to change the rear end gearing as well, a Ford 9'' with about a 3.25-1 or 3.00 to 1 would certainly help out alot.

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Old

Dec 24, 2012 | 08:08 PM

#3

spurredon

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A carburated 302 is not a bad way to go, but as Fomoko said, you would have to change the rear ratio for any real milage!

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