If the bore is 92 mm you can get 2180cc with the
H20 crank (if it's 82 mm stroke). My Volvo 142
B20 engine was 92.5 x 86 mm (stock 88.9 x 80 mm)
and it would pull all the way to 8000 rpm. The H20
is a mirror image (almost) of the Volvo pushrod B18/B20
engine. I think they can be compared on more than
one thing. If the H20 can be bored out to 92 mm
you would need higher compression pistons. Volvo
240 (B21) have 92 mm bore. Piston pin bore center
to top of piston are 39.7 or 41.9 mm (I think) and
piston pin is 24 mm on the early (same as FJ20)
and 23 mm on the later engines. What about the
crankshaft? Is it cast or forged? Is it fully counter
balanced? There are 96 mm pistons for Volvo B23.
Thomas
Adam Bradley wrote:
> Stroke is 93mm. Maybe you can use an H20 crank in an H25 block and get
> like 2300cc?
>
> At 07:31 PM 8/9/2002 +0200, Thomas - Sweden wrote:
> >Hmm, I wonder about bore & stroke.
> >If stroke is over 90 mm I dont want to
> >be too close if it reach 6000 rpm.
> >
> >Thomas
> >
> >Adam Bradley wrote:
> >
> > > Here's a picture of the engine:
> > >
> > > http://www.wiproducts.com/images/H-series.jpeg
> > >
> > > The engine is only rated at 62hp, but then again the H20 is rated at 54hp,
> > > so I assume it's more due to restrictive things attached to it. There's
> > > some giant attachment on the front of the engine, but they have that on
>all
> > > the forklift engines, it seems, and I have no idea what it's for. The
> > > starter's on the driver's side...
> > >
> > > Maybe I'll go back to the forklift dealer and take some pictures.
> > >
> > > At 11:47 AM 8/9/2002 -0400, SLBESQ@aol.com wrote:
> > > >In a message dated 8/8/02 6:45:33 PM Pacific Daylight Time,
> > > >datsunmike@nyc.rr.com writes:
> > > >
> > > >
> > > > > Sounds like a good truck motor. A little too much stroke I would
> > imagine.
> > > > >
> > > >
> > > >hi everyone
> > > >i'm intrigued by the thought of 25% more displacement, there being "no
> > > >replacement for displacement." is it (the H25) truly a bolt in? is it
> > > >outwardly the same as the H20? and therefore boltable to the same
> > pan, fuel
> > > >pump, camshaft, head, etc?
> > > >my H20 is fast, but with another 500 ccs.......=)
> > > >thanks
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