Help on 318 purchase - Newbie mechanic questions.

Thanks. That helps. Just a plain 318 unless x is found near oil pickup tube or 4 bolt mains.

Doing a little research the 318 engine with an x block seems to be a real rarity. Saw on one site where they claimed only 3 or 4 had been produced and were never put in factory cars. I never did see anybody claim they had one.