Daewoo Engine

I have a rebuildable 1.6l DOHC engine (US Spec) from my 2001 Daewoo Lanos. This engine has just shy of 250k mi on it, has had regular oil changes and timing belt replacements (never broken). The head gasket is leaking coolant on the bell housing, no foamy oil or steamy exhaust. Valve cover, oil pan, and manifolds were transplanted to replacement (rebuilt) engine

Edit 12/07/2013: This engine is no longer available.