There is very likely to be valve and piston damage. Needs checking to ascertain the full extent of the damage. Usually a major job.
If by some miracle there is no damage except for the belt then a new belt is not expensive, but it needs to be fitted very precisely. You need to find out why the belt broke......old age? seized idler wheel or tensioner? seized water pump? contamination?
Chicks Fan, April 2009
