Just pulled a good running 258/4.2L out of my 85 CJ. Odometer shows 155k miles. No smoke, runs smooth. Has clifford aluminum valve cover, no cracks on exhaust manifold, and has Motorcraft 2100 conversion. I think the Carb needs a power valve. Can send pics if interested. Swapping for a 360 so I'm looking to sell. Good motor mounts included also.