It depends on engine and year. Is this an Escort? If it's a 1.6, from '83 onward they were non-interference. All 1.9 engines were non-interference from the start. If you threw a belt, chances are highly unlikely that a valve bent....I snapped on this past summer on a heavily milled head and it was revving around 3k...still no problems. This would be similar to snapping one on the freeway.