On the weekend I tooked a at the Triumphtune book I referenced last week,
and Randall's right. Not much detail, and reading between the lines, it
sounds like you would be better off finding a complete TR6 engine. Stephen
> From: Randall[SMTP:firstname.lastname@example.org]
> Reply To: Randall
> Sent: Friday, May 26, 2000 10:49 PM
> Cc: 'email@example.com'
> Subject: Re: converting 2.0 to 2.5 liter engine
> I believe I have a copy of the article in hand (from the 1992 edition of
> the TriumphTune book, originally published in Sports Car Monthly), but
> it actually says very little about the conversion, instead recommending
> to just fit a complete 2.5L engine.
> To paraphrase : if you have a late Mark 3 GT6, you can keep the block,
> and change only the crankshaft, pistons, and head from a "post-1972"
> 2.5L engine with the shorter rear crankshaft nose. The GT6 sump will
> have to be reshaped for clearance for #1 and #2 rods.
> That's all it says. They don't quote any power figures, but imply that
> the conversion is very worthwhile. (Old hot rodder's adage : "There
> ain't no substitute for cubic inches")
> If everything else stays the same, you should get a 25% increase in
> power pretty much throughout the range, with no weight penalty, a
> sizeable gain.
> "Hill, Stephen M EDUC:EX" wrote:
> > The Moss Motors UK Triumph Tuning Guide (or whatever it is called) has
> > article in the back section which talks about what you need to convert a
> > to a 2.5 litre.
> > Stephen
> > > ----------
> > > From: HARRIS, ALAN J[SMTP:AHARRIS@entergy.com]
> > > Reply To: HARRIS, ALAN J
> > > Sent: Friday, May 26, 2000 10:21 AM
> > > To: 'firstname.lastname@example.org'
> > > Subject: converting 2.0 to 2.5 liter engine
> > >
> > >
> > >
> > > > I was having my crankshaft turned for my '69 TR6, and low and
> behold, a
> > > > previous owner has swapped engines to a 2.0 ltr, presumably from a
> > > > (?). According to the guy at the machine shop, the blocks are
> > > essentially
> > > > the same, as are the piston diameters. What's it take besides
> > > > the crankshaft to convert to a 2.5 ltr? Is the additional hp worth
> > > >
> > > > Alan Harris
> > > > '69 TR6 (mostly)
> > >