If your timing belt broke, you should not be trying to start your engine. You need to pull your head. Check your cams, valves, valve seats & piston tops. And while you're in there might as well replace all the valves. They are cheap.
Or if you can't afford the down time, if it's a daily driver, source a replacement head.
Like JJ said, our engines are interference type. If you break a belt, the valves WILL crash into the pistons guaranteed.