What you can do without pulling the engine is ,intake valve cover and timing cover gaskets. The Oil pan? yeah maybe but I'd rather have it in a stand for that. For all the labor jacking the engine to get the pan out etc. I dunno I never liked attempting it in the car. Plus you can be more meticulous in how you install the oil pan gasket etc. Do the rear main seal if it needs it. when you have the valve covers off ,check rocker shaft bolt torque etc. If you have adjustable rockers ajust them
