Tigers List Archive

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Mail From: "DrMayf" <(email redacted)>

Has anyone ever considred changing the stroke on the 260? I suspect that the
302 (early crank) will fit (Maybe?) which would give some additional cubic
inches. A 30 over bore and you almost have a 289 (close). Then use some of
the better heads for 289 and there you go. A pretty good upgrade. I think
I'll research this a bit.

Oh, there was some chatter about 4 barrel manifolds a bit ago. Was there
ever one that was a really low one made by ford that was for a 4 holer? How
about cast iron? Off list? No use in stirring the pot again. Lest ya want
to..

mayf, in Pahrump, cool morning

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Mail From: (email redacted)

I seem to recall that the cylinder walls are not deep enough in a 260 to accomodate that long of a stroke. Is that true anyone?

Jeff Hefner
64 B9470028
65 Mustang FB
56 T-Bird

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Mail From: "DrMayf" <(email redacted)>

Isn't the stroke of the 260 motor 2.87 inches? Then the difference between a
302 crank and 260 would be 0.13 inches. Since that is the total throw then
the difference in the down side, or skirt side, of the cylinder walls would
only be 0.065 inches. I had heard that there was some instability in the 289
to 302 pistons at the bottom of the stroke and that they made the cylinder
protrude a tad bit more into the crank case. Then add to that the shortness
of the 302 rod, 5.090 inches vs 5.155 of the 289 hipo and the different pin
heights, and it is lost in the noise. IMHO. The use of aftermarket pistons
can likely fix this. Jeff, Cool beans on the 56 Bird... wish I had one!!

mayf
----- Original Message -----
From: <(email redacted)>
To: ""DrMayf"" <(email redacted)>; <(email redacted)>
Sent: Monday, April 07, 2003 6:34 PM
Subject: Re: 260 Mods...


> I seem to recall that the cylinder walls are not deep enough in a 260 to
accomodate that long of a stroke. Is that true anyone?
>
> Jeff Hefner
> 64 B9470028
> 65 Mustang FB
> 56 T-Bird

This read-only message was archived from a public mail list.
Mail From: (email redacted)

Mayf,
Thanks for the info and the compliment on the Bird. It was my mothers and has been in the family forever, 36k total miles.

Jeff Hefner
64 B9470028
65 Mustang FB
56 T-Bird