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
----- Original Message -----
From: "Simon Favre" <email@example.com>
Cc: <firstname.lastname@example.org>; <email@example.com>
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,
> > firstname.lastname@example.org writes:
> > > I've had some feedback on my request for Jag valve cup information,
> > >
> > The Jag are 1.375", too small for what you want.