for one Opel and Expensive Daewoo are GM..... enough said.... I still dont understand why on modern engine makers insist on using a farking rubber belt to drive the gams and other crap. As for the ford motors... Look at a taxi... 1 million ks + out of a motor. I have never heard of a falcon engine needing a new timing chain. I spoke to an aussie (Yes they still drive taxis) and he told me that his car had done 1mill k's and no engine drama what so ever now the gear boxes are another problem. Also the timing chains are not just an ordinary chain ie push bike chain much thicker and are driven of mulitple sprockets or gogs