Ron,
Off hand would you know if the 289 heads with the smaller valves came
exclusive with the 5 bolt 289? That is what a previous owner transplanted
into my Tiger. My Tiger seems to be a hodge-podge of someone's spare parts
. Thus, while I could have anything on that motor, curiosity has me
wondering (though I do recollect with fuzzy-ness something designating my
heads as 1966 vintage).
So, until I can remove all the stuff my wife and kids have piled on the car,
find a place to place the un-hinged hood and wrangle the not so easy to
remove aluminum "Powered By Ford" valve cover ..... .
Dave,
My understanding was that the Ford small block heads in general never
flowed very well. It is just a guess, but unless the compression changes,
the larger ports and valves of the 289 likely make little different to
remove low and mid range torque on a 260.
Tom
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