We're about to pick up this 81 Blazer from as a lien sale . The body looks really straight except for the sunroof and roof around it (dented). There are a lot of new parts on the 305 but it doesn't turn over. I'm thinking the engine is seized up I'm expecting to do a lot of searches here to figure this thing figured out. I don't know much about the square body blazers, is there anything I should be looking for on it? Thanks in advance.