My brother and I are performing an engine swap in a 1980 Mercury Capri. He bought a 302 with a broken rocker stud. While attempting to remove the stud, we cracked the head. Anyhow, we decided that it would be best to remove the head, and replace it. I told him that we would want to find a set of heads with hardened valve seats, so that he can burn the unleaded fuel, with minimal effects on the valvetrain. Prior to removing the head, we decided to see if the guy that sold the engine did any more damage. We removed the opposite valve cover, and found that the guy pulled one of the other push-rods, for some unforseen reason, so we pulled the intake and found that the two lifters (where the rocker arm stud had broken, as well as where he had pulled the push-rod) had blown up, and parts of them were missing, telling us that they were somewhere in the engine. We still have to pull the cam, but the story goes on. We figured that it wouldn't hurt to check the rest of the engine out, so we pulled the oil pan off to inspect the bearings. To our dismay, we found a cigarette. Not just the butt, but a half-smoked cigarette! What kind of engine builder leaves a cigarette butt in the oil pan?!? Anyhow, the bearings all still looked good, but since we are this far into it, we may as well just re-ring it and replace the bearings. I need to mic the cylinders and the crank, and pull the pistons, still, to check for scoring, to see if it needs bored out, but all that will be done by this afternoon. He was really impressed that the engine came apart so quickly, but will probably be disappointed in how long it may take to get it back together. He will be happy to know, though, that I will make sure it is done properly, he will have an engine that will last some time, and that I will NOT leave any cigarette butts in the engine, as I prefer to do a clean assembly!