I have fitted the genuine ford multi steel headgasket to my saph part number 1101405 iirc, its much better than the crappy fibre replacements you get from parts shops which I stupidly fitted first but i did manage to get nearly 10000 miles out of it before it went

As said new head bolts, also id recommend changing your timing chain and plastic tensioner while your at it to save you any heartache in the future