Re: [AMC-list] 401 Crank into a 343 how to sought

["Rocky Lear" <lear31@xxxxxxxxxxxxxx>]

I must have been thinking about the crank flange differences.


----- Original Message ----- 
From: "Ken Ames" <ameskg@xxxxxxxxx>
To: "AMC, Rambler, Nash, Jeep and family" <amc-list@xxxxxxxxxxxxxxxxx>
Sent: Saturday, July 30, 2011 9:12 PM
Subject: Re: [AMC-list] 401 Crank into a 343 how to sought


> AFAIK there is no early/late bell housing pattern for the 290-401 AMC 8s.
>
> Ken
>
>
> Quoting Rocky Lear <lear31@xxxxxxxxxxxxxx>:
>
> > I've been thinking about the same thing. The engine has dogleg heads on 
> > it
> > but given the way the rest of it was put together, I doubt if it has been
> > converted to different bolts. They must have used the old bolts. Anyone 
> > have
> >
> > the 70 model head casting numbers handy? Changing over to the 401 cank 
> > will
> > require a different flywheel, right? I'd like to use a lakewood bell 
> > behind
> > it so I need one of those with the earlier bolt pattern, or an adapter to
> > use the later.
> >
> > Rocky
> >
> > ----- Original Message ----- 
> > From: "Armand Eshleman" <aje1@xxxxxxxxxxxxxxx>
> > To: "AMC, Rambler, Nash, Jeep and family" <amc-list@xxxxxxxxxxxxxxxxx>
> > Sent: Saturday, July 30, 2011 6:42 PM
> > Subject: Re: [AMC-list] 401 Crank into a 343 how to sought
> >
> >
> > > Another thing to think about when doing one of these swaps is which 
> > > heads?
> > >
> > > The 70 and newer dogleg heads breathe better, use 1/2 inch head bolts 
> > > and
> > > are much more plentiful.
> > >
> > > 70 and early 71 360, 390 and 401 heads are touted as the best.
> > >
> > > The 343 block could be drilled and tapped for the 1/2 inch headbolts.
> > >
> > > Not sure how that works with intake manifolds.
> > >
> > > or, after market aluminum heads??
> > >
> > > Armand
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>
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