what will happen when your timing belt breaks while driving

IF the timing belt 'BREAKS' on an interference engine, like this one is... Any damage that's going to be done IS already done!.. It's instantaneous with a BROKEN timing belt as the cams stop turning but the crankshaft & pistons continue rotating for a second... The best way to go about this is install a new timing belt and just enough components to start the engine and see how it runs... Sometimes, you'll get lucky! .... So..... Good luck!!