I have a friend that has a 70 318 that he was taking to the scrapper, i've seen it & its complete, he doesn't think its worth anything, i told him i'll take it if he's going to junk it, i'm sure its a good engine, he doesn't know if it runs or not, but its not locked up, from what i've seen on it, theres no sludge under the VCs & its in stock condition, the big ???? Is this a steel crank 318 & is it worth saving?