It is listed as an interferencae motor. 100,000 miles is max for this service before it get dangerous.
March, 30, 2013 AT 1:47 PM
Its a non-interference engine (according to Ford).
You should run a compression check on the engine once the timing belt is replaced. This will let you know if there is any valve damage (there shouldn't be any) and give a good idea of the condition of the engine.