Mitsubishi Repair Problems? Ask a Mechanic for Answers ASAP
A broken timing belt would mean the cylinder head will need to be removed to replace any valves that are bent.
A labour intensive job, could cost about $2000.
Sorry for bad news, fairly typical these days, hence the importance of timing belt replacement intervals.
Hope this helps.
Have you decided to fix your car?
I hope my advice has been of assistance to you.