nicholsj@oakwood.org wrote:
>
> a late 260 block bored to 4.00" (no mail please, I've already heard
> that it 'can't be done'....)
>
> 'Performance Tuning the Sunbeam Tiger' by Gordon Chittenden, says you
> can bore out a late 260 block to 289 specs since these were in reality
> 289 blocks that Ford Industrial made to meet Rootes contractual
> obligations. According to Mr. Chittenden it is possible
> Jeff
Jeff,
While I've got lots of books, Mr. Chittenden's is not among them. I
think that's what I back-ordered at Amazon.Com. Does it say what S/N a
"late casting" is? While I have read many sources that say a "thin wall"
meansijust what it says. This is the first print reference to this
"thick wall" casting.
I am going to call a few large scale engine rebuilders to find their
experience. If anyone else knows a few more rebuilders, or specialty
speed machine shops, do a little telephone detective work and find out
when they had to use sleeves.
To my knowledge, all the 260's had the "289" freeze plug count, while
the 225's did not. Want to make sure that, with all the core shifting
that happens in production, someone doesn't find out the hard way that
there wasn't enough "meat".
The cores had to be unique to the 260's, as Ford would not cast the same
block for either line, and then have to do much more massive machining
on the 289's in production, so it would have had to be very special
cores for the 260 only.
Steve
--
Steve Laifman < One first kiss, >
B9472289 < one first love, and >
< one first win, is all >
< you get in this life. >
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