Subaru america seem to think it's an EG33;
http://www.subaru-global.com/about/history/1991-001.html#subhead-001
Model : EG33
Type : Water-cooled, Horizontally-Opposed 6-cylinder, 24-valve
Bore x stroke : 96.9mm x 75.0mm
Engine displacement : 3,318cc
Compression ratio : 10.0
Max. output (ps/rpm) : 240/6,000
Max. torque (kg-m/rpm) : 31.5/4,800
some quotes;
The SVX's EG33 engine was an indirect development of the 2.7 L ER27 flat-6 from the XT6, expanded to 3,318 cc (96.9 mm bore by 75 mm stroke) and equipped with dual overhead camshafts and 4 valves per cylinder. An increase in compression ratio to 10.0:1 brought power to 230 hp (172 kW) at 5,400 rpm and torque to 228 ft.lbf (309 Nm) at 4,400 rpm.
Subaru terms from
http://www.legacygt.com/forums/printthread.php?t=585;
EG – Subaru 6-cylinder engines (up through mid to late 90’s)
EG33 – Subaru 3.3 litre 6-cylinder engine code (SVX)
EJ – Subaru 4-cylinder engines (early 90’s and newer)
EJ20 – Subaru 2.0 litre 4-cylinder engine code
EJ205 – Subaru 2.0 litre turbo engine (US WRX)
EJ22 – Subaru 2.2 litre 4-cylinder engine code
EJ25 – Subaru 2.5 litre 4-cylinder engine code
EJ255 – Subaru 2.5 litre turbo engine (US Forester XT, Baja Turbo)
EJ257 – Subaru 2.5 litre turbo engine (US WRX STi)
EZ – Subaru 6-cylinder engines (post EG series H6 engines)
EZ30R – Subaru 3.0 litre 6-cylinder engine code (BL/BP Legacy and new Outback)
From Japanese carview website;
http://catalogue.carview.co.jp/SUBARU/ALCYONE-SVX/1991/engines.asp
says it is an EG33
You could also go to a SVX forum, mention EJ33 and be laughed at.
I guess to prove everyone wrong you'd need to post a pic of an EJ33 engine number.
Wes -
www.offroadvw.net - 200HP Quad Cam V6 in a VW Baja - with climate control...
🙂
www.taylorcycles.com.au - My DH MTB racing brothers shop.