1995-1999 2.5 Legacy is a DOHC. 2000+ 2.5 non-turbo is SOHC. And SUS is an Outback designation, not Legacy.
And just an admin-keeping function. This forum is for members who are rebuilding their own engines. Moved to 2nd Gen Sub-forum where you'll likely get more info.
Good luck with your project.
- Pro dilectione Dei et patriam -