Jim wrote:

There are a few comments in this month's AOPA Pilot about Franklin engines
in the Stinson 108-3 article.

"The engines for the 108s — the Franklin 150-hp and 165-hp models — are no
longer made, although a Franklin 220-hp engine was still being made by PZL,
of Poland, until recently. At this writing PZL has temporarily suspended
production of that engine. For now, though, parts remain in plentiful supply
even for the engines no longer made.

Until the supply of 220-hp Franklins runs out, U.S. distributors such as
Franklin Aircraft Engines, of Fort Collins, Colorado, can upgrade Stinson 108s
to the 220-hp engine. Univair owns a supplemental type certificate (STC) that
allows mounting a 180-hp or 200-hp Lycoming O-360 or IO-360 engine on a Stinson
108-series aircraft."

George Patterson
You can dress a hog in a tuxedo, but he still wants to roll in the mud.