Some 77 and up 440's are not good over .020 but most are good for more. If
they are sonic tested for wall thickness many can go more than .060. I have
a close friend that has a 78 440 in a drag car, it is bored out .100 and it
only needed 1 sleeve to go that far. The bores do not shift with sleeves
after the engine has been thermo cycled. This motor developed 746HP on the
dyno and has had no problems. You do need to sonic test the blocks before
boring over .020 which is an expense, plus if they need a sleeve, that is an
extra expense.
----- Original Message -----
From: "Chad Brown" <clutchfan2001@xxxxxxxxx>
To: <mailing-list@xxxxxxxxxxxxxxxx>
Sent: Tuesday, June 11, 2002 5:04 PM
Subject: Re: IML: Thin Walled 440's
> I happen to have that same book.
>
>
> --- Leo Jormanainen <lexa@xxxxxxxxxxxxxxx> wrote:
> > Hi,
> >
> > How to Rebuild Big-Block MOPAR Engines by Don
> > Taylor,
> > pages 51,52 and a Caution on page 69. Quote;
> > "The 1976-'78 400 cid (and 440 cid) was a thin-wall
> > casting
> > and as such should be bored no greater then
> > 0.020-in.over"
> >
> > Leo
> > QCI
> >
> >
> >
> > At 01:25 PM 11/06/2002 -0700, you wrote:
> > >Well then;
> > > May it was an error on the magazine's part but I
> > definatelly remember that
> > >they said it was from a 77 New Yorker. I will find
> > the article again and
> > >check it. I find it hard to believe that they would
> > bother to change the 440
> > >casting that much that you could only bore it
> > .020'', you can bore out a 360
> > >more then that. Do you have proof of this or is
> > this like the myths about
> > >Chrysler products stalling over a bridge.
> > >Best Regards
> > >Arran Foster
> > >----- Original Message -----
> > >From: "Chad Brown" <clutchfan2001@xxxxxxxxx>
> > >To: <mailing-list@xxxxxxxxxxxxxxxx>
> > >Sent: Tuesday, June 11, 2002 1:01 PM
> > >Subject: Re: IML: Price of a 67 or 68 440?
> >
> >
> >
Back to the Home of the Forward Look Network