I broke (intentionally) my timing chain Saturday and placed a long pin through the end of both the old one and the new one and secured them to a point where they hung side by side. Any stretch would be evident, right? Well low and behold!! They are exactly
the same length. Uh OH, now I've have to go on the forum and eat crow!! I was surprized to say the least!! Had I known that I would have left it in and just replaced the tensioner and guides!! Oh well , live and learn!!