OK I went and picked up a 1989 L98 engine. It is a complete engine. I had him pull the intake and head off of the engine before I got there to check it out. It is a roller engine(which is what I was looking for), there is no ring grove to speak off(.002) and the bearings look good as well. He said the engine came out of the car with 45,000 on it. It is very clean inside and out so I would take his word for it. But I have a few questions since this is the first roller engine I have messed with. OK so here are the questions. When I change out the cam will I have to replace the lifters? I have roller rockers off of my 1978 350 will I be able to reuse those or will I have to replace them with a different set? The heads have push in studs, how much lift can I go on the cam before I have to have them pinned or have studs put in them? Also will I be able to use the manual flywheel that is in my Nova now or are they balanced differently? By the way I only gave $200 for the complete engine minus the distributor, flywheel, and brackets which I don't need anyway.