Re: Suzuki SP 370 ? +.5mm pistons
- (Very) long shot, but I think some people used the same pistons for Yamaha
XS650 big bores, at least here in Europe, where they were very popular for
Sidecar Motorcross. Possible avenue of enquiry.
> A pal needs two O/S pistons for a Series C Vincent
> twin. He has been using some conversion from a
> Suzuki 370 which was concocted 20 years ago and which
> had required the rod bushes to be changed to 22mm but
> it is now time for a rebore. He has 85mm bore now
> but needs 85.5mm and would take another set although
> we can't find even one, much less two. Alternately,
> something is available from England ( likely Omegas )
> which are fine but he is already 1mm O/S from stock
> 84mm bore and would prefer not to resleeve. Has
> anyone pieces or advice on where to get components ?
> Ken A
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- John M,
Thanx, good information which I will pass along to
--- JOHN MEAD <john.mead@...> wrote:
> Terry Prince, in Australia, is selling forgedhttp://us.click.yahoo.com/XISQkA/lOaOAA/yQLSAA/KqTolB/TM
> pistons made by JE to his specs. Also, the new
> Vincent, also being produced in AU, are using the
> John Mead
> --- Marin California <marinca555@...> wrote:
> > Dave W,
> > How much and how custom were they ? I always
> > hate
> > to see skirts with 5mm wall thickness and domes
> > are 1/2" thick but no one wants to make forging
> > for Vincent pistons these days.
> > I was just quoted almost $140 @ for custom
> > titanium
> > valves for a Norton Manx which is fine but I need
> > buy eight of each which is not so fine. That's
> > over
> > $2200 for valves plus shipping and tax.
> > The Wiseco pistons I have bought recently have
> > worked but they haven't worked better than stock
> > pistons.
> > Ken A
> > --- Dave Williams <ronin@...> wrote:
> > > Marin California wrote:
> > > > With JE, you used to have to buy four of each
> > > design
> > > > at $160 @, four years ago but I don't like the
> > low
> > > > volume not so special, special pieces I
> > > see
> > > > from them and Wiseco has what you want in
> > > > catalog or minimum special runs used to be of
> > > > pieces.
> > >
> > > I've been buying Wiseco customs in sets of six
> > or
> > > eight, depending on
> > > what I'm building. That's "custom" as in
> > providing
> > > templates for
> > > CNC'ing the dish, special ring grooves,
> > clearancing
> > > the skirts for
> > > counterweight clearance, special valve reliefs,
> > > oddball wristpin sizes,
> > > etc. Supposedly there's an additional CNC
> > > programming charge for
> > > *really* oddball pistons, but I've yet to run
> > > that.
> > >
> > >
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