Posted for "Rhonda Bewley" <Rhonda@BPAENGINES.com>:

Gary:

There is a special service publication available from Lycoming that
lists each engine model, including suffixes and what their set up is.
Find SSP-108 and SSP-204.  As far a Lycoming cores go, anything with a
serial number ending in -40,-48 will be a narrow deck engine (pretty
much any cases manufactured prior to 1976), anything with a -XXA is a
wide deck, and I believe anything with a -xxE is a roller tappet, wide
deck (but I wouldn't expect to find a lot of those engine on the core
market as of yet.)

In my opinion, you'd be better off financially to purchase a new
experimental 360 kit engine.  There are three manufacturers of the
parallel head 360, so the costs stay in check.  You can get a brand new
engine, balanced and blue-printed by a reputable engine builder for less
than the price of a core and an overhaul from a good shop.

Good luck.

Rhonda Barrett-Bewley

Barrett Precision Engines, Inc.

Tulsa,OK

918-835-1089

918-835-1754 fax