It has been a long time, but I think we just removed the exhaust logs in order to get to the freeze plugs on the 455 olds in a 21' Fresno cruiser. However, if you need to raise up the motor in order to get access, I would just take off the clamp where the bell housing attaches to the jet, undo the front mounts, and hoist the front of the motor just enough to do the job. I'd also try to keep the driveline on the jet spline because sometimes it is tough to slip it back on.