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Re: Clarification on Valve Cup information..

To: "Simon Favre" <simon@mondes.com>, <WSpohn4@aol.com>
Subject: Re: Clarification on Valve Cup information..
From: "Steve Hammatt" <shammatt@sos.net>
Date: Wed, 29 Nov 2000 20:53:11 -0800
Simon
You nailed it!  The required valves springs need the larger i.d.
of the large size cups.  No luck so far, but thanks to everyone for
the suggestions...
Steve

----- Original Message -----
From: "Simon Favre" <simon@mondes.com>
To: <WSpohn4@aol.com>
Cc: <shammatt@sos.net>; <vintage-race@autox.team.net>
Sent: Wednesday, November 29, 2000 11:36 AM
Subject: Re: Clarification on Valve Cup information..


> Oddly enough, the Alfa cups are almost exactly the same size as the
> Jag cups (1.377").
>
> Would it be possible (or reasonable) to install reducing bushings in
> the head to run a smaller cup? It depends on the width of the cam
> lobe and the lift. In fitting high-lift cams, Alfas need to have
> grooves cut in the bores for the cups so the cam won't hit the head.
> The other thing to consider is the valve spring diameter. If the
> springs won't fit inside the smaller cup, there's no point.
>
> WSpohn4@aol.com wrote:
> >
> > In a message dated 11/19/00 3:00:50 PM Pacific Standard Time,
> > shammatt@sos.net writes:
> >
> > > I've had some feedback on my request for Jag valve cup information,
but no
> > >
> >
> > The Jag are 1.375", too small for what you want.

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