Got an email back with this note:
> Tom
> The H-20 rods are not the same as U-20. They are sort
> of like R rods but shorter.
Makes sense... as the piston height would be different
between the two engines if the connecting rods were
different length.
I'd keep U20 Pistons on U20 Rods, or the H20 Pistons with
H20 Rods. If you really have some $$$ just have some
custom made pistons. ;-)
Sounds like a case of needing to use the flat top U20
pistons with the U20 connecting rods.
Cheers,
Tom
Thomas Walter wrote:
>
> H20 is the forklift motor.
>
> I am under the impression it is a near identical bolt on for
> the R16 engine. Only difference is they fitted a single weak
> valve spring on the H20 motor to keep the rev's below 1,500
> rpm. I have yet to hear of a H20 having any problems reving
> to a higher (6,000 rpm) limit in a roadster.
>
> Where did you find the head? I'd recommend getting the compete
> engine if possible. H20 uses the "stroked crank" and U20 rods
> and pistons. Pretty nice, and torque, engine for the roadster.
>
> Tom
>
> datsunmike wrote:
> >
> > Has anybody used an H20 head on the Roadster or know anything about them and
> > whether they can be used?
> >
> > Mike
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