The BusLab in berkeley CA is a big proponent of this
mod and has been doing this for a few years.  There
are a few other shops in various states that are doing
similar things, too.  I am currently building an
engine using the larger pistons (and corresponding
cylinders you purchase with them), but honestly don't
have much (ahem... any) experience with engine
building so i can't really say they look good or bad.
My P&C set are on their way to boston bob for him to
check them out and assess their quality among other
things, so when i get feedback from him (the expert),
i'll either ask him to post to the list about their
quality or try to summarize it myself.

The manufacturer of them is: "A.A. Piston Co." and i
believe they are made in taiwan.  They only step up
from 94mm to 95mm, so you don't get a huge bump in
displacement (just about 50cc).

That's about all i know on that subject...

-Damon

--- "Bergin, Richard" <bergin@MARSHALL.USC.EDU> wrote:
> Does anybody have information or experiences with
> rebuilding a  2.1 using larger (9?mm pistons and
> cylinders, changing the displacement to 2.2.  No
> change in the stroke.

=====
'84 Westy (Sparky)
'65 Kharma Ghia (Dharma)

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