Reliability. I've seen a lot of broken belts, but only a few broken chains. The only broken chains I've seen where on <350hp V8'S.why would u want to do that anyways?
exactly, believe me when i say, 4 cyls with chains is just a pain in the butt when it comes to maintenenceso what if your belt breakes? its a non-interference engine. you just get a new belt and reset the timing.