Whew, engine rebuilds are interesting. Just shelled out a whole wedge of money for parts including piston rings and big end shells from germany of all places. Also had dire warnings from forums that if I'm doing this, I should get the crank ground to make sure everything fits, else it will all fall apart. On the other hand, I'm working with a mechanic with an awful lot of experience with classic cars and engine rebuilds, and he reckons it's not necessary, so just hope the best really.