I am preparing to start a 235 straight six in a friends 57 pickup. It has been sitting for 12 years. Parked because tranny mounts went and motor punched radiator. I pulled the plugs, squirt wd40. sit for a day. Pulled the radiator to be replaced. Changing oil and filter. Poured a little oil in cylinders. Rotated motor 2 revolutions by hand no plugs in it. On this motor how do I prime the oil system? Anyone have a list of things I should do before starting it? Should I treat it like a new motor and run it for awhile when I first start or is that not so important? Can I fire it up for a few seconds without a radiator? I would like to know it might run before spending for a radiator.