[Gogar]

From what I understand, an SC engine can go a long, long way UNLESS it snaps its head studs. Some do, some don't. If your head studs stay intact, you'l probably doing a clutch or tranny bits long before you'll need to do the engine anyway.

That said, the SC I just bought had 79k when it broke a few head studs. PO did full top and bottom engine and new tranny just for kicks, replacing the studs with 993 studs, among other things. From what I understand, that engine can easily go a few hundred thousand before a rebuild unless I drive like a jacka$$.